COVID-19 vaccine effectiveness against hospitalizations in Paraguay, May 2021-April 2022: A test-negative design.

BACKGROUND: Vaccine effectiveness (VE) estimates vary by population characteristics and circulating variants. North America and Europe have generated many COVID-19 VE estimates but relied heavily on mRNA vaccines. Fewer estimates are available for non-mRNA vaccines and from Latin America. We aimed to estimate the effectiveness of several COVID-19 vaccines in preventing SARS-CoV-2-associated severe acute respiratory infection (SARI) in Paraguay from May 2021 to April 2022. METHODS: Using sentinel surveillance data from four hospitals in Paraguay, we conducted a test-negative case-control study to estimate COVID-19 vaccine effectiveness against SARI by vaccine type/brand and period of SARS-CoV-2 variant predominance (Gamma, Delta, Omicron). We used multivariable logistic regression adjusting for month of symptom onset, age group, and presence of ≥1 comorbidity to estimate the odds of COVID-19 vaccination in SARS-CoV-2 test-positive SARI case-patients compared to SARS-CoV-2 test-negative SARI control-patients. RESULTS: Of 4,229 SARI patients, 2,381 (56%) were SARS-CoV-2-positive case-patients and 1,848 (44%) were SARS-CoV-2-negative control-patients. A greater proportion of case-patients (73%; 95% CI: 71-75) than of control-patients (40%; 95% CI: 38-42) were unvaccinated. During the Gamma variant-predominant period, VE estimates for partial vaccination with mRNA vaccines and Oxford/AstraZeneca Vaxzevria were 90.4% (95% CI: 66.4-97.6) and 52.2% (95% CI: 25.0-69.0), respectively. During the Delta variant-predominant period, VE estimates for complete vaccination with mRNA vaccines, Oxford/AstraZeneca Vaxzevria, or Gamaleya Sputnik V were 90.4% (95% CI: 74.3-97.3), 83.2% (95% CI: 67.8-91.9), and 82.9% (95% CI: 53.0-95.2), respectively. The effectiveness of all vaccines declined substantially during the Omicron variant-predominant period. CONCLUSIONS: This study contributes to our understanding of COVID-19 VE in Latin America and to global understanding of vaccines that have not been widely used in North America and Europe. VE estimates from Paraguay can parameterize models to estimate the impact of the national COVID-19 vaccination campaign in Paraguay and similar settings.

Percepción sobre la vacuna COVID-19 y su efecto en la cobertura de vacunación regular de pueblos indígenas del Departamento de Presidente Hayes, Paraguay

Introducción: Durante la pandemia por COVID-19, factores como cierre de fronteras, recepción tardía de vacunas, limitación de circulación de la población, reubicación de enfermeros/as de áreas de vacunación a áreas de atención de pacientes con COVID-19, sumado el miedo al contagio, afectaron las coberturas de vacunación en varios países. Objetivo: Describir la percepción sobre la vacuna COVID-19 y su efecto en la cobertura de vacunación regular de pueblos indígenas del departamento de Presidente Hayes, Paraguay. 2022. Metodología: Estudio observacional descriptivo, retrospectivo de diseño cuali-cuantitativo de corte transversal. Resultados: Las características de los pueblos indígenas revela que 110(26,44 %) se ubica entre 28 a 37 años, 276(66,35 %) del sexo femenino, 133(31,97 %) son de la etnia Angaité, 290(69,71 %) poseen estudios hasta el nivel primario y 178(42,79 %) de estado civil soltero. La percepción hacia la vacunación COVID-19 fue favorable en 201 sujetos (48 %) y muy desfavorable en 148 (36 %). Existen pueblos indígenas con gran influencia de creencias culturales y religiosas en relación con las vacunas. La vacunación regular se vio afectada. Discusión: Se observó que la pandemia del COVID-19 y la aparición de la vacuna desarrolló desconfianza no solo en la vacuna COVID-19 si no también en el resto de las vacunas en algunos de los pueblos estudiados.

Introduction: During the COVID-19 pandemic, factors such as border closures, late receipt of vaccines, limitation of population circulation, relocation of nurses from vaccination areas to areas of care for patients with COVID-19, added to the fear of contagion affected vaccination coverage in several countries. Objective: Describe the perception of the COVID-19 vaccine and its effect on the regular vaccination coverage of indigenous peoples in the department of Presidente Hayes, Paraguay 2022. Methods: Descriptive, retrospective, observational study with a qualitative-quantitative cross-sectional design. Results: The characteristics of the indigenous peoples reveals that 110 (26.44%) are between 28 and 37 years old, 276 (66.35%) are female, 133 (31.97%) are of the Angaité ethnic group, 290 (69.71%) have studies up to the primary level and 178 (42.79%) have single marital status. The perception towards the COVID-19 vaccination was favorable in 201 subjects (48%) and very unfavorable in 148 (36%). There are indigenous peoples with great influence of cultural and religious beliefs in relation to vaccines. Regular vaccination was affected. Discussion: It was observed that the COVID-19 pandemic and the appearance of the vaccine developed distrust not only in the COVID-19 vaccine but also in the rest of the vaccines in some of the towns studied.

The Experience of Testing for Coronavirus Disease (COVID-19) at a Single Diagnostic Center in Paraguay before the Introduction of Vaccination.

Soon after the declaration of the COVID-19 pandemic, the Institute for Health Sciences Research (IICS) of the National University of Asunción, Paraguay became a testing laboratory (COVID-Lab) for SARS-CoV-2. The COVID-Lab testing performance was assessed from 1 April 2020 to 12 May 2021. The effect of the pandemic on the IICS and how the COVID-Lab contributed to the academic and research activities of the institute were also assessed. IICS researchers and staff adjusted their work schedules to support the COVID-Lab. Of the 13,082 nasopharyngeal/oropharyngeal swabs processed, 2704 (20.7%) tested positive for SARS-CoV-2 by RT-PCR. Of the individuals testing positive, 55.4% were female and 48.3% were aged 21-40 years. Challenges faced by the COVID-Lab were unstable reagent access and insufficient staff; shifting obligations regarding research, academic instruction, and grantsmanship; and the continuous demands from the public for information on COVID-19. The IICS provided essential testing and reported on the progress of the pandemic. IICS researchers gained better laboratory equipment and expertise in molecular SARS-CoV-2 testing but struggled to manage their conflicting educational and additional research obligations during the pandemic, which affected their productivity. Therefore, policies protecting the time and resources of the faculty and staff engaged in pandemic-related work or research are necessary components of healthcare emergency preparedness.

Mortalidad en adultos con COVID-19: experiencia de la Unidad de Cuidados Intensivos de un Hospital de Tercer Nivel de Paraguay

Introducción: diversos factores pueden influir en la mortalidad de pacientes hospitalizados por COVID-19. Objetivo: determinar la mortalidad y los factores asociados a esta en adultos con COVID-19 hospitalizados en la unidad de cuidados intensivos de un Hospital de Tercer Nivel de Paraguay. Metodología: estudio observacional, descriptivo, de asociación cruzada, de corte transversal y temporalmente retrospectivo. Se incluyó historias clínicas de pacientes adultos, de ambos sexos, que tenían diagnóstico confirmado (por prueba de antígeno y/o PCR) de infección por SARS-CoV-2 y que estaban hospitalizados en la unidad de cuidados intensivos de un Hospital General de Tercer Nivel de Paraguay. Resultados: Se incluyeron 116 pacientes, de los cuales el 54 % correspondió al sexo masculino. La edad media fue de 57±12,9 años. El 51 % tenía hipertensión arterial y el 29 % diabetes mellitus. El requerimiento de ventilación mecánica se dio en un 85% de pacientes. El 75 % de los pacientes ventilados tuvo un desenlace fatal. Se encontró una asociación estadísticamente significativa entre la presencia de infecciones bacterianas y requerimiento de hemodiálisis y el desenlace fatal (p=0,0074 y p=0,00011, respectivamente). La media de las edades de los pacientes fallecidos fue de 59,5 años, mientras que el grupo de pacientes que recibieron el alta desde la unidad de cuidados intensivos arrojó una media de 54,2 años. La diferencia entre estas edades en relación con el óbito fue significativa, con una p<0,05. Discusión: La mortalidad general debido a COVID-19 fue de más de 6 por cada 10 pacientes, siendo más alta en aquellos pacientes con ventilación. Aquellos pacientes que presentaron sobreinfección bacteriana o requirieron de hemodiálisis durante el curso de la hospitalización presentaron un peor desenlace en comparación con los pacientes que no presentaron este tipo de complicaciones.

Introduction: Several factors may influence mortality in patients hospitalized with COVID-19. Objective: This research aimed to determine mortality and associated factors in adults with COVID-19 hospitalized in the intensive care unit of a Third Level Hospital in Paraguay. Methodology: Observational, descriptive of cross-association, cross-sectional, and retrospective study. We included medical records of adult patients, of both sexes, who had a confirmed diagnosis (by antigen and/or PCR test) of SARS-CoV-2 infection and who were hospitalized in the intensive care unit of a Third Level General Hospital in Paraguay. Results: We included 116 patients, 54% of whom were male. The mean age was 57 ± 12.9 years. Of participants, 51% had hypertension and 29% diabetes mellitus. Mechanical ventilation was required in 85% of the patients. Of ventilated patients, 75% had a fatal outcome. A statistically significant association was found between the presence of bacterial infections and hemodialysis requirement and fatal outcome (p=0.0074 and p=0.00011, respectively). The mean age of the deceased patients was 59.5 years, while the group of patients discharged from the intensive care unit had a mean age of 54.2 years. The difference between these ages in relation to death was significant, with a p<0.05. Discussion: Overall mortality due to COVID-19 was more than 6 per 10 patients, being higher in those patients with ventilation. Those patients who presented bacterial superinfection or required hemodialysis during hospitalization had a worse outcome compared to patients who did not present this type of complications.

"Pandemic Fatigue" in South America: A Multi-Center Report from Argentina, Bolivia, Paraguay, Peru, and Uruguay.

The COVID-19 pandemic has had a heavy impact on daily life, leading to physical and psychosocial consequences. Nowadays, clinicians and health researchers are particularly interested in describing and facing the long-term effects of COVID-19, also known as "long-COVID syndrome". Pandemic fatigue has been defined as a cluster of demotivation, tiredness, and psychological effects that emerge gradually over time after the infection or through the adoption of the recommended measures to combat it. In this study, we report the findings of a large survey conducted in South America involving 1448 participants (mean age: 33.9 ± 11.2 years old) from Argentina, Bolivia, Uruguay, Peru, and Paraguay. An online survey was launched through the common social media based on a specific assessment aimed to detect the prevalence of pandemic fatigue and associated factors. Socio-demographic characteristics, medical, and personal information were collected; the Pandemic Fatigue Scale (PFS) and the Coronavirus Anxiety Scale (CAS) were also administered. We found mid-levels of pandemic fatigue among respondents (21.7 ± 7.95 score at PFS) as well as significant anxiety related to the COVID-19 pandemic (1.56 ± 2.76 score at CAS). In addition, pandemic fatigue was significantly associated with the experience of the loss of a relative/friend due to COVID-19, anxiety related to the infection, and reliance on social media as a primary source of information on the pandemic. Vaccination significantly reduced the levels of fatigue among respondents. Our findings may add to the international debate regarding the long-term health consequences of the COVID-19 pandemic and strategies to manage them in the general population of South America.

Atenção puerperal em uma região de fronteira: fragilidades agravadas pela pandemia de COVID-19 / Atención puerperal en una región fronteriza: debilidades agravadas por la pandemia de la COVID-19 / Puerperal care in a border zone: fragility aggravated by the COVID-19 pandemic

Resumo Objetivo Compreender a atenção à saúde de puérperas em uma região de fronteira na vigência da pandemia por COVID-19. Método Pesquisa qualitativa do tipo Teoria Fundamentada nos Dados, vertente straussiana, realizada em região de fronteira, na atenção primária à saúde, com 30 participantes, que formaram três grupos amostrais entre mulheres, profissionais de saúde e gestores, por meio de entrevistas semiestruturadas, realizadas por chamada de voz e de forma presencial entre agosto de 2021 a maio de 2022. Resultados Identificaram-se cinco categorias, conforme modelo paradigmático, sendo elas: Identificando serviços de atenção ao puerpério; retornando para a atenção primária à saúde no puerpério; identificando fatores que interferiram no atendimento à puérpera; apontando estratégias para promoção da saúde no puerpério; e tendo uma atenção puerperal frágil. Conclusão e implicações para a prática Fragilidades existentes foram agravadas no curso da pandemia por COVID-19. Recomenda-se qualificar a contrarreferência para garantir a continuidade da atenção puerperal em tempo oportuno; o teleatendimento para viabilizar o acompanhamento, quando condições epidemiológicas forem de risco para a saúde materna; políticas públicas podem fortalecer a assistência a estrangeiras e migrantes em região de fronteira.

Resumen Objetivo Comprender la atención a la salud de puérperas en una región fronteriza durante la presencia de la pandemia por COVID-19. Método Investigación cualitativa del tipo Teoría Fundamentada, vertiente straussiana, realizada en una región fronteriza, en atención primaria de salud, con 30 participantes, que conformaron tres grupos muestrales entre mujeres, profesionales de la salud y directivos, a través de entrevistas semiestructuradas, realizadas por llamada de voz y personal directivo entre agosto de 2021 y mayo de 2022. Resultados Se identificaron cinco categorías, de acuerdo con el modelo paradigmático: Identificar los servicios de atención al puerperio; volver a la atención primaria de salud en el puerperio; identificar los factores que interfirieron en la atención puérpera; señalar estrategias para la promoción de la salud en el puerperio; teniendo un cuidado puerperal frágil. Conclusión e implicaciones para la práctica las debilidades existentes fueron exacerbadas en el curso de la pandemia por COVID-19. Se recomienda calificar la contrarreferencia para asegurar la continuidad de la atención puerperal en tiempo y forma; el teleservicio para permitir el seguimiento, cuando las condiciones epidemiológicas representen un riesgo para la salud materna; Las políticas públicas pueden fortalecer la atención a los extranjeros y migrantes en la región fronteriza.

Abstract Objective To understand the health care of puerperal women in a border region during the COVID-19 pandemic. Method Grounded Theory qualitative research, straussian strand, conducted in a border region, in primary health care, with 30 participants, who formed three sample groups among women, health professionals, and managers through semi-structured interviews conducted by voice call and in-person between August 2021 and May 2022. Results Five categories were identified, according to the paradigmatic model, namely: Identifying postpartum care services; returning to primary health care in the postpartum; identifying factors that interfered in the care of postpartum women; pointing out strategies for health promotion in the postpartum period; and having fragile postpartum care. Conclusion and implications for practice Existing weaknesses were exacerbated during the pandemic by COVID-19. It is recommended to qualify the counter-referral to ensure continuity of postpartum care on time; teleservice to enable follow-up when epidemiological conditions pose a risk to maternal health; public policies can strengthen assistance to foreign women and migrants in the border region.

Seroprevalencia de infección con SARS-CoV-2 en escolares y docentes en Paraguay

Introducción: En Paraguay, en el 2021 se produjo el retorno gradual y voluntario a las clases en modalidad semipresencial. Objetivo: Estimar la seroprevalencia anti-SARS-CoV2 en los escolares y docentes. Materiales y Métodos: Estudio descriptivo transversal, realizado entre el 25 de octubre y el 5 de noviembre de 2021. Se aplicaron encuestas estructuradas a escolares y docentes de cinco instituciones educativas, dos en Asunción y tres en el Departamento Central; además, se obtuvieron muestras de sangre por punción digital para detección de anticuerpos mediante una prueba rápida inmunocromatográfica. Resultados: Se incluyeron 966 escolares entre 5 a 18 años y 148 docentes, 12,4% (120/966) de los escolares ya había recibido la vacuna anti-COVID-19, que representa 61,9% (120/194) de los estudiantes habilitados para vacunación y 97,3% de los docentes ya antes fue vacunado. El 95,8% de los escolares y 46,6% de los docentes recibieron la vacuna de BNT 162B2 de Pfizer (E.U.A.) y BioNTech (Alemania). El 34,5% de los docentes y 3,9% de los escolares refirieron haber tenido COVID-19. La seroprevalencia sin discriminar estado de vacunación fue 37,7% en escolares y 91,9% en docentes, en los no vacunados fue de 30,9% en escolares y 25,0% en los docentes. En el análisis multivariado solo la vacunación estuvo asociada a la seropositividad. Conclusiones: La alta seroprevalencia anti-SARS-CoV-2 refleja una importante circulación viral en la comunidad. Casi la totalidad del plantel docente tenía el esquema completo de vacunación, y más de la mitad de los estudiantes habilitados había recibido al menos una dosis. Se destaca la alta seropositividad en vacunados. Se recomienda continuar con las medidas preventivas no farmacológicas y vacunación.

Background: In Paraguay there has been a gradual and voluntary return to classes in a blended mode. Aim: To estimate the anti-SARS-CoV2 seroprevalence in schoolchildren and teachers. Methods: Cross-sectional descriptive study, carried out between October 25 and November 5, 2021. Structured surveys were applied to schoolchildren and teachers from five schools, two in Asunción and three in the Central Department. In addition, samples of fingerstick blood for antibody detection by rapid immunochromatographic test were obtained. Results: A total of 148 teachers and 966 schoolchildren were included, 12.4% of the schoolchildren had received the anti-COVID-19 vaccine, which represents 61.9% of the students qualified for vaccination. Among the teachers, 97.3% received the COVID-19 vaccine, 95.9% had the complete schedule, 34.5% of teachers and 3.9% of schoolchildren reported having had COVID-19. The seroprevalence with no vaccine status discrimination was 37.7% in schoolchildren and 91.9% in teachers. In unvaccinated schoolchildren, seroprevalence was 30.9% and in unvaccinated teachers 25.0%. Conclusions: The high anti-SARS-CoV-2 seroprevalence reflects an important viral circulation in the community. Almost the entire teaching staff had the complete vaccination schedule, and more than half of the qualified students had received at least a dose. The high seropositivity in vaccinated is highlighted. It is recommended to continue with the preventive non-pharmacological measures and vaccination.

Consumo de riesgo para alcohol durante el tiempo de cuarentena por la pandemia del COVID-19 en Paraguay, 2020: encuesta virtual

Introducción: Para la contención de la pandemia causada por la enfermedad del coronavirus (COVID-19) se aplicaron una serie de medidas sanitarias a toda la población, como el distanciamiento social, cierre de fronteras y cuarentena en el hogar. Dichas medidas, además, pudieron haber repercutido en un deterioro de la salud en general, un aumento del consumo de bebidas alcohólicas y otras sustancias para contrarrestar o reducir la intensidad de su respuesta a estas consecuencias. Objetivo: Determinar las características demográficas del consumo de riesgo para alcohol durante el tiempo de cuarentena estricta por la pandemia de covid-19. Metodología: Estudio observacional analítico de corte transverso tipo exploratorio. Constó de 16.538 encuestas virtuales realizadas a personas mayores de edad pertenecientes a todo el territorio nacional entre junio y septiembre del 2020. Se excluyó a 219 encuestados por no cumplir criterios de inclusión o datos incorrectamente llenados. Se determinó el consumo de riesgo mediante una prueba que calificaba el consumo por puntajes. Más de 5 puntos para hombres, más de 4 para mujeres. Resultados: 12224 participantes adultos (18-65 años) con una media de 31,9 años (±9,2), formaron parte del análisis, con predominio de participación masculina 64,5% (n=10531). El 74,9% (n=12224) proveniente del Eje Metropolitano. Según géneros, el OR fue 1,15 IC95 (1,08 - 1,23), vp=0,001. Al comparar nivel educativo, secundaria completa/incompleta, el OR fue 1,56 IC95 (1,19 - 2,06), vp=0,001. Y al comparar por ejes de residencias el OR fue 0,83 IC95 (0,77 - 0,89), vp=0,001. Discusión: Se pudo observar que, durante el tiempo de cuarentena, el consumo de alcohol crecía conforme el nivel educativo de la población aumentaba. Los hombres presentaron un consumo de riesgo mayor que los hombres. Conocer este comportamiento ayudaría a plantear acciones que ayuden a prevenir el consumo de alcohol en el grupo de mayor riesgo.

Introduction: The impact of the outbreak of pandemic proportions of COVID-19 has initiated several health and social measures worldwide. Thus, there is growing concern about the consequences of preventive social confinement associated with the pandemic due to the potential increase in the consumption of alcohol and other harmful substances. Between 2010-2014, in Paraguay approximately 5% of deaths over 15 years of age are attributable to alcohol consumption and are associated with external cause injuries, cancers, liver disease, cardiovascular diseases, addictions and domestic violence. Early detection and treatment are recommended intervention strategies to prevent these consequences. Objective: To determine the demographic characteristics of alcohol risk consumption during the covid-19 pandemic quarantine period. Methods: Analytical cross-sectional, exploratory observational study. It consisted of 16,538 virtual surveys carried out on persons of legal age throughout the national territory between June and September 2020. A total of 219 respondents were excluded for not meeting the inclusion criteria or for incorrectly filled out data. Risk consumption was determined using a test that rated consumption by scores. More than 5 points for men, more than 4 for women. Results: 12224 adult participants (18-65 years old) with a mean age of 31.9 years (±9.2), were part of the analysis, with a predominance of male participation 64.5% (n=10531). The 74.9% (n=12224) came from the Metropolitan Axis. According to gender, the OR was 1.15 CI95 (1.08 - 1.23), pv=0.001. When comparing educational level, high school complete/incomplete, the OR was 1.56 CI95 (1.19 - 2.06), pv=0.001. And when comparing by axes of residence, the OR was 0.83 CI95 (0.77 - 0.89), pv=0.001. Discussion: It was observed that, during the quarantine period, alcohol consumption increased as the educational level of the population increased. Males presented a higher risk consumption than males. Knowing this behavior would help to propose actions to help prevent alcohol consumption in the most at-risk group.

Evaluación del estrés en tiempo de pandemia de COVID - 19: una mirada de profesionales de salud. Paraguay. 2020

La pandemia del COVID-19 nos ha sorprendido con una cruda realidad, la difusión a través de los noticieros de la aparición de un virus muy letal de la familia de los coronavirus, ante una carencia casi total de equipos de protección individual en que se debatían los hospitales públicos y privados. El presente estudio tuvo un diseño observacional, descriptivo y transversal. Formaron parte de la investigación 101 profesionales de salud. Se realizó un muestreo no probabilístico de conveniencia. El contacto con los participantes fue a través de medios telemáticos, se les administró un cuestionario elaborado utilizando la aplicación Google Forms. Para evaluar el estrés de los participantes, fue aplicado el cuestionario de problemas psicosomáticos y para el nivel de ansiedad la escala de trastorno de ansiedad. Los hallazgos más relevantes en cuanto a las características sociodemográficas fueron: 70,5 % de sexo femenino, 34,1 % del grupo etario de 21 a 30 años, y 65,9 % de nivel académico universitario. El 47,7 % (48) de los profesionales presentó estrés leve y 36,4 % se encontró en fase de alarma. En cuanto a la ansiedad, el 45,5 % (46) presentó ansiedad moderada y el 36,4% (37), ansiedad de nivel leve. Se concluye que la mayoría de estos profesionales de salud presentó un nivel de estrés leve en tiempo de la pandemia de COVID-19.

The COVID-19 pandemic has surprised us with a crude reality, the diffusion through the news of the appearance of a very lethal virus of the coronavirus family, in the face of an almost total lack of personal protective equipment in which public and private hospitals were struggling. The present study had an observational, descriptive and cross-sectional design. A total of 101 health professionals took part in the study. Non-probabilistic convenience sampling was used. Participants were contacted by telematic means and a questionnaire was administered using Google Forms. To evaluate the stress of the participants, the psychosomatic problems questionnaire was applied and for the level of anxiety, the Anxiety Disorder Scale was used. The most relevant findings for the sociodemographic characteristics were: 70.5 % was female, 34.1 % of the age group 21 to 30 years, with a university academic level 65.9 %. Of the professionals, 47.7% (48) presented mild stress and 36.4% was in the alarm phase. Regarding anxiety, 45.5 % (46) presented moderate anxiety and 36.4 % (37), mild anxiety. It was concluded that the majority of these health professionals presented a mild level of stress during the COVID-19 pandemic.

Impacto de la COVID-19 en el control de la Tuberculosis en Paraguay. 2019-2020

La COVID-19 ha provocado una emergencia sanitaria mundial sin precedentes, afectando también negativamente a la prestación de atención a la tuberculosis (TB) en casi todos los países. Por tanto, esta investigación analiza el impacto de la COVID-19 en el control de la TB en Paraguay. Estudio descriptivo, retrospectivo, con enfoque mixto y de corte transversal. Resultados: siete de los 10 indicadores priorizados de la Estrategia "Fin de la TB" registraron resultados por debajo a lo notificado en los últimos tres años, siendo el 2020 el más afectado. Existe una brecha de 1.037 personas que no han sido diagnosticadas y tratadas por TB en Paraguay, de acuerdo a lo estimado por la Organización Mundial de la Salud (OMS) en 2020. Se analizaron 2.598 casos de TB en 2020, frente a 3.083 en el 2019, lo que representa una disminución del 15,7% en la notificación de casos; las notificaciones disminuyeron en un 24% en mujeres, 40,5% en niños y en un 19,6% de éxito de tratamiento. Se presentó una tasa de letalidad de 12%, la mayor en los últimos cuatro años. Las expertas encuestadas, opinan que la situación de la TB empeoró tras la llegada de la COVID-19 en el país, principalmente en la notificación de casos e investigación de contactos. La COVID-19 ha impactado negativamente en el control de la TB en Paraguay, esto representa un riesgo significativo en el control de la enfermedad y el avance a lo largo de los años se ve seriamente comprometido y amenaza con revertir los logros alcanzados.

COVID-19 has caused an unprecedented global health emergency, also negatively affecting the delivery of tuberculosis (TB) care in almost all countries. This research therefore analyses the impact of COVID-19 on TB control in Paraguay. Descriptive, retrospective, mixed-approach, cross-sectional study. Results: seven of the 10 prioritized indicators of the "End TB Strategy" registered results below what was reported in the last three years, with 2020 being the most affected. There is a gap of 1,037 people who have not been diagnosed and treated for TB in Paraguay, as estimated by the World Health Organisation (WHO) in 2020. There were 2,598 TB cases analysed in 2020, compared to 3,083 in 2019, representing a 15.7% decrease in case notification; notifications decreased by 24% in women, 40.5% in children and 19.6% treatment success. There was a case fatality rate of 12%, the highest in the last four years. The experts surveyed were of the opinion that the TB situation worsened after the advent of COVID-19 in the country, mainly in case notification and contact investigation. COVID-19 has had a negative impact on TB control in Paraguay, which represents a significant risk for the control of the disease, and progress over the years is seriously compromised and threatens to reverse the achievements made.

COVID-19 en estudiantes de medicina en una universidad privada en el periodo académico 2020-2021. Frecuencia y características clínicas / COVID-19 in medical students at a private university in the 2020-2021 academic period. Frequency and clinical characteristics

Introducción: el primer caso de COVID-19 se confirmó en Paraguay el 7 de marzo de 2020. No se han encontrado publicaciones que haya caracterizado la frecuencia y características clínicoepidemiológica de COVID-19 en estudiantes de medicina. Objetivo: determinar la frecuencia de infección por SARS-CoV-2 y características clínicas de estudiantes de medicina de la Universidad del Pacífico en el periodo académico 2020-2021. Metodología: estudio observacional descriptivo de corte transversal, que incluyó a estudiantes de medicina de la Universidad del Pacifico. Los datos se obtuvieron mediante una encuesta virtual por Google Docs© que incluía la edad, sexo, curso, síntomas, secuelas, pruebas laboratoriales y resultados para SARS-CoV-2 y gravedad del cuadro. Resultados: se encuestaron 342 estudiantes entre 18 a 42 años de los 6 cursos, 70,8 % de sexo femenino, 66,4 % presentó síntomas compatibles con COVID-19, el más frecuente (44,2 %) fue el dolor de cabeza. El 67,5 % estuvo en contacto con alguna persona con COVID-19 y 40,4 % informó no haber respetado estrictamente la cuarentena, el 61,7 % se realizó alguna prueba laboratorial y de ellos el 42,7 % resultó positivo para el SARS-CoV-2, 98,9 % cursó con cuadro leve. El 86,7 % conocía el nexo de contagio. Se observó significativamente (p<0,001) mayor frecuencia de COVID19 en los estudiantes ≤21 años (65 % vs 32 %), los que tuvieron contacto con persona con COVID19 (49,1 % vs 10,5 %), y aquellos que presentaron síntomas compatibles (48,8 % vs 18,6 %). Conclusiones: casi la mitad de los participantes presentaron resultados positivos para SARS-CoV2, lo que pone de manifiesto una alta transmisión comunitaria.

Introduction: the first case of COVID-19 in Paraguay was confirmed on March 7, 2020. No publications characterizing the frequency and clinical-epidemiological characteristics of COVID-19 in medical students have been found. Objective: to determine the frequency of infection by SARS-CoV-2 and clinical characteristics of medical students at the Universidad del Pacífico during the 2020-2021 academic period. Methodology: this was a cross-sectional descriptive observational study, that included medical students from the Universidad del Pacífico. The data was obtained through an online survey by Google Docs© that included age, sex, academic year, symptoms, sequelae, laboratory testing and results for SARS-CoV-2 and severity of the condition. Results: 342 students between 18 and 42 years of age from the 6 courses were surveyed, 70.8% were female; 66.4 % presented symptoms compatible with COVID-19, the most frequent (44.2 %) was headache. 67.5 % were in contact with someone with COVID-19 and 40.4 % reported not strictly following quarantine guidelines, 61.7 % underwent some laboratory testing and 42.7 % of them were positive for SARS-CoV-2, 98.9 % had a mild infection. 86.7 % knew the contagion source. A significantly (p<0.001) higher frequency of COVID-19 was observed in students ≤21 years old (65 % vs 32 %), those who had contact with a person with COVID-19 (49.1 % vs 10.5 %), and those who presented compatible symptoms (48.8 % vs 18.6 %). Conclusions: almost half of the participants presented positive results for SARS-CoV-2, which shows high community transmission.

mHealth intervention to improve quality of life in patients with chronic diseases during the COVID-19 crisis in Paraguay: A study protocol for a randomized controlled trial.

BACKGROUND: Patients with chronic disease represent an at-risk group in the face of the COVID-19 crisis as they need to regularly monitor their lifestyle and emotional management. Coping with the illness becomes a challenge due to supply problems and lack of access to health care facilities. It is expected these limitations, along with lockdown and social distancing measures, have affected the routine disease management of these patients, being more pronounced in low- and middle-income countries with a flawed health care system. OBJECTIVES: The purpose of this study is to describe a protocol for a randomized controlled trial to test the efficacy of the Adhera® MejoraCare Digital Program, an mHealth intervention aimed at improving the quality of life of patients with chronic diseases during the COVID-19 outbreak in Paraguay. METHOD: A two-arm randomized controlled trial will be carried out, with repeated measures (baseline, 1-month, 3-month, 6-month, and 12-month) under two conditions: Adhera® MejoraCare Digital Program or waiting list. The primary outcome is a change in the quality of life on the EuroQol 5-Dimensions 3-Levels Questionnaire (EQ-5D-3L). Other secondary outcomes, as the effect on anxiety and health empowerment, will be considered. All participants must be 18 years of age or older and meet the criteria for chronic disease. A total of 96 participants will be recruited (48 per arm). CONCLUSIONS: It is expected that the Adhera® MejoraCare Digital Program will show significant improvements in quality of life and emotional distress compared to the waiting list condition. Additionally, it is hypothesized that this intervention will be positively evaluated by the participants in terms of usability and satisfaction. The findings will provide new insights into the viability and efficacy of mHealth solutions for chronic disease management in developing countries and in times of pandemic. TRIAL REGISTRATION: ClinicalTrials.gov NCT04659746.

An evaluation of the safety and immunogenicity of MVC-COV1901: Results of an interim analysis of a phase III, parallel group, randomized, double-blind, active-controlled immunobridging study in Paraguay.

BACKGROUND: Data from previous studies of the MVC-COV1901 vaccine, a subunit vaccine against SARS-CoV-2 based on the stable prefusion spike protein (S-2P) adjuvanted with CpG 1018 adjuvant and aluminum hydroxide, suggest that the vaccine is generally safe and elicits a good immune response in healthy adults and adolescents. By comparing with AZD1222, this study adds to the findings from previous trials and further evaluates the breadth of protection offered by MVC-COV1901. METHODS: In this phase 3, parallel group, randomized, double-blind, active-controlled trial conducted in 2 sites in Paraguay, we assigned adults aged 18-91 years in a 1:1 ratio to receive intramuscular doses of MVC-COV1901 or AZD1222 administered as scheduled in the clinical trial. Serum samples were collected on the day of vaccination and 14 days after the second dose. Primary and secondary safety and immunogenicity endpoints were assessed. In addition, other outcomes investigated were cross-reactive immunity against the Omicron strain and the induction of IgG subclasses. RESULTS: A total of 1,030 participants underwent randomization. Safety data was derived from this set while primary immunogenicity data involved a per-protocol immunogenicity (PPI) subset including 225 participants. Among the participants, 58% are seropositive at baseline. When compared against AZD1222, MVC-COV1901 exhibited superiority in terms of neutralizing antibody titers and non-inferiority in terms of seroconversion rates. Reactogenicity was generally mild and no serious adverse event was attributable to MVC-COV1901. Both vaccines have a Th1-biased response predominated by the production of IgG1 and IgG3 subclasses. Omicron-neutralizing titers were 44.5 times lower compared to wildtype-neutralizing titers among seronegative individuals at baseline. This fold-reduction was 3.0 times among the seropositive. CONCLUSION: Safety and immunogenicity data of MVC-COV1901 from the study in Paraguay confirm previous results. The previous infection coupled with vaccination of this vaccine may offer protection against the Omicron strain though its durability is still unknown.

Crítica al estudio factibilidad de la utilización de la inteligencia artificial para el cribado de pacientes con COVID-19 en Paraguay

[EXTRACTO]. La presente crítica se encuentra orientada al artículo de Galván y cols, que tuvo como objetivo principal, estudiar la factibilidad de la utilización de la inteligencia artificial como método sensible y específico para el cribado de COVID-19 en pacientes con afecciones respiratorias, empleando imágenes de tórax obtenidas con tomógrafo y una plataforma de telemedicina, reportándose que es viable la utilización de esta tecnología para la detección rápida de COVID-19 en los hospitales públicos de Paraguay. El primer problema que observamos se relaciona con la reducida cantidad de pacientes (5%) que mostraron lesiones altamente compatibles con COVID-19, otro es el deficit de equipamiento y de profesionales especializados, limitando su uso. Por lo tanto, la IA solo podría ser utilizada por hospitales de gran envergadura. Además, según el estudio Kundu y cols., del cual se guiaron los autores del articulo original, quedan claro las limitaciones del diseño del estudio ya que no todos los casos de COVID-19 están asociados con patología torácica. Por último, detalla la importancia de especificar en qué características principales se basan para dar el diagnóstico (tamizaje) de COVID-19 de otras patologías relacionadas en las imágenes TAC. La respuesta a esta carta está disponible en: https://doi.org/10.26633/ RPSP.2022.190

Respuesta a la carta al editor: Crítica al estudio factibilidad de la utilización de la inteligencia artificial para el cribado de pacientes con COVID-19 en Paraguay

[EXTRACTO]. En respuesta a la carta al editor titulada: Critica al estudio de factibilidad de la utilización de la inteligencia artificial para el cribado de pacientes con COVID-19 en Paraguay, los autores del artículo de referencia elevan a consideración la réplica sobre el contenido de esta, con el objeto de esclarecer los cuestionamientos mencionados en la misma. Respecto al primer problema mencionado en la carta al editor; el estudio utilizó el programa de inteligencia artificial (IA) que fue desarrollado por un equipo de informáticos biomédicos, neumólogos y radiólogos (imagenólogos). El programa utilizado dispone de un método de aprendizaje profundo para realizar el diagnóstico rápido de COVID-19; es decir, cuenta con un algoritmo para detectar patologías neumológicas y un algoritmo de diagnóstico de neumopatías compatibles con COVID-19. En cuanto al segundo problema mencionado en la carta al editor; el presente estudio se realizó entre marzo del 2020 y junio del 2021 en 14 hospitales de las 18 regiones sanitarias del Ministerio de Salud Pública y Bienestar Social (MSPBS), que ya contaban con al menos un tomógrafo funcionando al momento del estudio. El informe de diagnóstico del médico radiólogo y el resultado del diagnóstico por IA fueron remitidos luego a un equipo de neumólogos para su valoración, análisis, correlación y validación; los neumólogos correlacionaron los valores porcentuales del diagnóstico por IA con el resultado de los médicos radió- logos, el resultado del análisis molecular (RT-PCR) y el cuadro clínico del paciente para determinar los grados de concordancia o discordancia entre los resultados, y llegar a un diagnóstico definitivo que permitiera informar al médico del hospital donde se trataba al paciente en cuestión. Esto permitió reducir las aglomeraciones en los centros especializados y optimizar el uso de los limitados recursos disponibles. Esta respuesta se refiere a la carta disponible en: https://doi.org/10. 26633/RPSP.2022.193

Prevalence and Associated Factors of Depression, Anxiety, and Stress in University Students in Paraguay during the COVID-19 Pandemic.

We aimed to determine the prevalence of depression, anxiety, and stress in university students in Paraguay during the COVID-19 pandemic. A cross-sectional study was conducted among 293 students from four universities in Paraguay in 2021. The DASS-21 mental health scale was used to measure the outcomes (depression, anxiety, and stress) and evaluate their association with socio-educational variables. A total of 77.1% of the participants were women and 136 (46.4%) were between 21 and 25 years old. The prevalence of depression, anxiety, and stress was 74.7%, 87.4%, and 57%, respectively. We found that being a woman and studying at a public university was positively associated with depression, anxiety, and stress. Receiving COVID-19 training increases the prevalence of mental health problems. In conclusion, high levels of anxiety, depression, and stress were found in university students during the COVID-19 pandemic. Being a woman, studying at a public university, and receiving training on COVID-19 were factors associated with a higher prevalence of presenting all the mental health problems evaluated. Furthermore, students aged 31 and over had a higher prevalence of depression and stress.

Hábitos alimentarios y estrés académico en estudiantes universitarios durante la pandemia del COVID-19, Paraguay 2021

RESUMEN El objetivo del estudio fue identificar los hábitos alimentarios relacionados al nivel de estrés de los estudiantes de la Universidad Nacional de Caaguazú durante la pandemia del COVID-19. Se realizó un estudio descriptivo, observacional, de corte transversal donde se seleccionaron 353 estudiantes de las diferentes facultades. Se estudiaron las variables demográficas, los hábitos alimentarios y el estrés académico. Se incluyeron en el estudio 353 estudiantes universitarios, 64,9% del sexo femenino, 59,5% menores de 23 años. El 36,5% pertenecía a la facultad de ciencias de la producción mientras que el 29,7% fue del tercer año. En total el 64,8% (229 estudiantes) tuvieron nivel de estrés alto. El nivel de estrés alto estuvo relacionado a un alto consumo de dulces (AOR= 2,94, 1,57-5,51), alto consumo de comida rápida (AOR= 2,23, 1,14-4,32), bajo consumo de frutas (AOR= 1,66, 0,99-2,79), saltarse el almuerzo (AOR= 2,94, 1,55-5,60) y el aumento de las colaciones diarias (AOR= 3,36, 1,74- 6,47). Los resultados de nuestro estudio visibilizaron la problemática de que el estrés académico durante la pandemia del COVID-19 influyó en la adquisición de malos hábitos alimentarios.

ABSTRACT The objective of the study was to identify the eating habits related to the level of stress among students of the National University of Caaguazú during the COVID-19 pandemic. A descriptive, observational, cross-sectional study was carried out with 353 students selected from different faculties. Demographic variables, eating habits and academic stress were studied. A total of 353 university students were included in the study, 64.9% female, and 59.5% under 23 years of age. 36.5% belonged to the Faculty of Production Sciences while 30% were from the third year. In total, 64.8% (229 students) had a high level of stress. High stress level was related to high consumption of sweets (AOR= 2.94, 1.57-5.51), high consumption of fast food (AOR= 2.23, 1.14-4.32), low consumption of fruits (AOR= 1.66, 0.99-2.79), skipping lunch (AOR= 2.94, 1.55-5.60), and increased daily snacks (AOR= 3.36, 1.74-6.47). The results of our study made visible the problem that academic stress during the Covid-19 pandemic influenced the acquisition of bad eating habits.