A multivariate spatio-temporal model for the incidence of imported COVID-19 cases and COVID-19 deaths in Cuba.

To monitor the COVID-19 epidemic in Cuba, data on several epidemiological indicators have been collected on a daily basis for each municipality. Studying the spatio-temporal dynamics in these indicators, and how they behave similarly, can help us better understand how COVID-19 spread across Cuba. Therefore, spatio-temporal models can be used to analyze these indicators. Univariate spatio-temporal models have been thoroughly studied, but when interest lies in studying the association between multiple outcomes, a joint model that allows for association between the spatial and temporal patterns is necessary. The purpose of our study was to develop a multivariate spatio-temporal model to study the association between the weekly number of COVID-19 deaths and the weekly number of imported COVID-19 cases in Cuba during 2021. To allow for correlation between the spatial patterns, a multivariate conditional autoregressive prior (MCAR) was used. Correlation between the temporal patterns was taken into account by using two approaches; either a multivariate random walk prior was used or a multivariate conditional autoregressive prior (MCAR) was used. All models were fitted within a Bayesian framework.

Immediate effects and duration of a short and single application of transcutaneous auricular vagus nerve stimulation on P300 event related potential.

Introduction: Transcutaneous auricular vagus nerve stimulation (taVNS) is a neuromodulatory technique that stimulates the auricular branch of the vagus nerve. The modulation of the locus coeruleus-norepinephrine (LC-NE) network is one of the potential working mechanisms of this method. Our aims were 1-to investigate if short and single applications of taVNS can modulate the P300 cognitive event-related potential (ERP) as an indirect marker that reflects NE brain activation under control of the LC, and 2-to evaluate the duration of these changes. Methods: 20 healthy volunteers executed an auditory oddball paradigm to obtain P300 and reaction time (RT) values. Then a 7 min active or sham taVNS period was initiated and simultaneously a new P300 paradigm was performed. We successively repeated the paradigm on 4 occasions with different time intervals up to 56 min after the stimulation onset. Results: During active taVNS an immediate and significant effect of increasing the amplitude and reducing the latency of P300, as well as a shortening in the RT was observed. This effect was prolonged in time up to 28 min. The values then returned to pre-stimulation levels. Sham stimulation did not generate changes. Discussion: Our results, demonstrate differential facilitating effects in a concrete time window after taVNS. Literature about the modulatory effect of taVNS over P300 ERP shows a wide spread of results. There is not a standardized system for taVNS and currently the great heterogeneity of stimulation approaches concerning targets and parameters, make it difficult to obtain conclusions about this relationship. Our study was designed optimizing several stimulation settings, such as a customized earbud stimulator, enlarged stimulating surface, simultaneous stimulation over the cymba and cavum conchae, a Delayed Biphasic Pulse Burst and current controlled stimulation that adjusted the output voltage and guaranteed the administration of a preset electrical dose. Under our stimulation conditions, targeting vagal nerve fibers via taVNS modulates the P300 in healthy participants. The optimal settings of modulatory function of taVNS on P300, and their interdependency is insufficiently studied in the literature, but our data provides several easily optimizable parameters, that will produce more robust results in future.

Role of Citicoline in Patients With Mild Cognitive Impairment.

The term mild cognitive impairment (MCI) defines an intermediate state between normal aging and dementia. Vascular cognitive impairment refers to a decline in cognitive function that is caused by or associated with vascular disease and comprises all the spectrum of cognitive impairments, from MCI of vascular origin to vascular dementia. One of the available treatments for cognitive impairment is cytidine diphosphate-choline (CDP-Choline), or citicoline. The objective of the present manuscript is to provide complete evidence about the efficacy of citicoline for MCI, especially of vascular origin, but also due to other neurodegenerative disorders. Citicoline is a pharmaceutical product constituted by the combination of 2 natural molecules (cytidine and choline) and is marketed as a food supplement. It has been proposed to provide neuroprotective effects through diverse mechanisms of action. Taking into account the available literature, citicoline has shown a consistent improvement in cognitive function in patients with MCI, especially of vascular origin. Moreover, it provides beneficial effects on vascular, Alzheimer, and mixed dementias, stroke sequelae, intracerebral hemorrhages, traumatic brain injuries, and neurodegenerative diseases. Long-term treatment with citicoline has also been demonstrated to be well-tolerated and has not been associated with severe adverse events. Citicoline is a safe, well-tolerated, and promising agent with evidenced neuroprotective properties.

Correction to "Cuban Abdala vaccine: Effectiveness in preventing severe disease and death from COVID-19 in Havana, Cuba; A cohort study" [The Lancet Regional Health - Americas 2022; 16: 100366] https://doi.org/10.1016/j.lana.2022.100366.

[This corrects the article DOI: 10.1016/j.lana.2022.100366.].

Cuban Abdala vaccine: Effectiveness in preventing severe disease and death from COVID-19 in Havana, Cuba; A cohort study.

Background: COVID-19 vaccines have proven safe and efficacious in reducing severe illness and death. Cuban protein subunit vaccine Abdala has shown safety, tolerability and efficacy (92·3% [95% CI: 85·7‒95·8]) against SARS-CoV-2 in clinical trials. This study aimed to estimate Abdala's real-world vaccine effectiveness (VE). Methods: This retrospective cohort study in Havana analyzed Cuban Ministry of Public Health databases (May 12-August 31, 2021) to assess VE in preventing severe illness and death from COVID-19 (primary outcomes). Cox models accounting for time-varying vaccination status and adjusting by demographics were used to estimate hazard ratios. A subgroup analysis by age group and a sensitivity analysis including a subgroup of tested persons (qRT-PCR) were conducted. Daily cases and deaths were modelled accounting for different VE. Findings: The study included 1 355 638 persons (Mean age: 49·5 years [SD: 18·2]; 704 932 female [52·0%]; ethnicity data unavailable): 1 324 vaccinated (partially/fully) and 31 433 unvaccinated. Estimated VE against severe illness was 93·3% (95% CI: 92·1-94·3) in partially- vaccinated and 98·2% (95% CI: 97·9-98·5) in fully-vaccinated and against death was 94·1% (95% CI: 92·5-95·4) in partially-vaccinated and 98·7% (95% CI: 98·3-99·0) in fully-vaccinated. VE exceeded 92·0% in all age groups. Daily cases and deaths during the study period corresponded to a VE above 90%, as predicted by models. Interpretation: The Cuban Abdala protein subunit vaccine was highly effective in preventing severe illness and death from COVID-19 under real-life conditions. Funding: Cuban Ministry of Public Health. Genetic Engineering and Biotechnology Centre.

Perampanel as adjuvant treatment in epileptic encephalopathies: A multicenter study in routine clinical practice.

OBJECTIVE: Developmental and epileptic encephalopathies (DEEs) are a heterogeneous group of syndromes, including Lennox-Gastaut syndrome (LGS), which are refractory to multiple therapies. Perampanel efficacy has been reported in LGS but further real-world evidence is needed in DEEs. METHODS: A multicenter, retrospective, 1-year observational study in patients with DEEs on adjuvant perampanel treatment was conducted to assess perampanel safety and effectiveness in this type of patients in a real-world setting. Seizure types [focal onset seizures (FOS), generalized tonic-clonic seizures (GTCS), tonic seizures (TS), atonic seizures (AtS), atypical absences (AA), and myoclonic seizures (MS)] and seizure clusters were divided in different frequency groups: daily, weekly, and monthly seizures, and absent or seizure freedom. Patients could have more than one seizure type. For each frequency group, group change and seizure freedom were analyzed. RESULTS: Eighty-seven patients diagnosed with DEEs (45 males) of median age 22 [1-70] years were included. The most frequent DEEs were LGS (35.6%) and Lennox-like syndrome (37.9%). At baseline 20 patients had three to five types of seizures, 36 patients had two types of seizures and 31 patients had one predominant type of seizure. The mean number of seizure types per patient at baseline was 2.12 ± 0.97 which was reduced to 1.62 ± 0.91 at 12 months (p < 0.001). Overall, 51.7% of patients had a significant improvement in at least one seizure type. At baseline, 45 patients had GTCS, 42 FOS, 41 TS, 18 AA, 16 AtS, 11 MS, and 30 seizures clusters. Seizure freedom for each specific type at 12 months was significantly achieved by 35% of patients with GTCS (p < 0.001), 17% (p = 0.016) with TS and 37% with seizure clusters (p < 0.001). Patients achieved seizure freedom from other seizure types but with no statistical significance: 7% FOS-free, 28% AA-free, 6% Ats-free, and 18% MS-free. Regarding changes of group at 12 months, 22% of TS and 19% of FOS improved significantly to a group with lower seizure frequency (p = 0.004 and p = 0.02, respectively). In remaining groups (4% of GTCS, 11% of AA, 18% of Ats, 18% of MS, and 13% of seizure clusters), the improvement was not statistically significant. Twenty-nine patients discontinued perampanel: 18 (21%) due to AEs, 8 (9%) due to lack of efficacy, and 3 (3%) due to seizure worsening. Adverse events, mostly mild or moderate, were reported in 53% of patients, and irritability/mood changes (22%) and somnolence (17%) were the most frequent. CONCLUSION: This is the first large-scale real-world study with perampanel across different seizure types in patients with DEEs. Perampanel was effective, especially in GTCS, TS, and FOS, as well as in seizure clusters. Perampanel was generally well-tolerated without unexpected AEs.

Use of the Ultrasound Technique as Compared to the Standard Technique for the Improvement of Venous Cannulation in Patients with Difficult Access.

(1) Objective. We aimed to demonstrate that the use of the ultrasound-guided technique facilitates peripheral venous cannulation as compared to the standard technique in patients with difficult access at emergency services. (2) Method. A case-control study, randomized research. Variables were collected from a population with non-palpable or not visible veins, classified into size risk groups for 6 months. In the comparative analysis, the patients were divided into two groups: the cases group was composed of patients to whom the peripheral venous cannulation was performed with the ultrasound-guided technique (UST), while the control was composed of patients with whom the standard technique (ST) was performed. The ultrasound LOGIQ P5 750VA from General Electric Healthcare, with an 11 mHz linear probe, was utilized, along with peripheral venous catheters model InsyteTM AutoguardTM with gauges of 14G to 26G. (3) Results. Seventy-two cases. The use of the ultrasound decreased the time (618.34s ST, 126s UST) and the number of punctures (2.92 ST, 1.23 UST); about 25% of the patients did not have complications with the UST, as compared to 8% with the ST. The use of the ultrasound decreased the pain experienced by 1.44 points in the visual analog scale, as compared to 0.11 points with the ST. The rate of success of the first try with the UST was 76%, as compared to 16% of the ST. The gauge of the catheter increased with the UST, with successful cannulations obtained with 20G (56%) and 18G (41%) gauges. (4) Conclusions. The use of ultrasound facilitates venous cannulation according to the variables of the study. The ultrasound visualization of the vessels is associated with the selection of the catheter gauge. There was no relation between the complications and the depth of the blood vessels.

Comparing the COVID-19 Responses in Cuba and the United States.

The purpose of this analytic essay is to contrast the COVID-19 responses in Cuba and the United States, and to understand the differences in outcomes between the 2 nations. With fundamental differences in health systems structure and organization, as well as in political philosophy and culture, it is not surprising that there are major differences in outcomes. The more coordinated, comprehensive response to COVID-19 in Cuba has resulted in significantly better outcomes compared with the United States. Through July 15, 2021, the US cumulative case rate is more than 4 times higher than Cuba's, while the death rate and excess death rate are both approximately 12 times higher in the United States. In addition to the large differences in cumulative case and death rates between United States and Cuba, the COVID-19 pandemic has unmasked serious underlying health inequities in the United States. The vaccine rollout presents its own set of challenges for both countries, and future studies can examine the comparative successes to identify effective strategies for distribution and administration. (Am J Public Health. 2021;111(12):2186-2193. https://doi.org/10.2105/AJPH.2021.306526).

Evaluation of different vagus nerve stimulation anatomical targets in the ear by vagus evoked potential responses.

BACKGROUND: Electrical auricular vagus nerve stimulation (taVNS) is an emerging therapy. Stimuli are transported to brainstem nuclei, whereby its multiple projections reach to many subcortical and cortical areas, thus allowing the neuromodulation of several systemic physiological processes. We aim to define the best auricular target for taVNS through vagus somatosensory evoked potential (VSEP) elicited stimulating different auricular areas with different electrode sizes. METHODS: Twenty-six subjects were enrolled. Three stimulation areas were studied: simultaneous cymba and cavum (CC), cymba (C) and earlobe (L); and two electrode sizes: extra-large (X) and small (S). We studied the effect of five combinations (CCX, CCS, CS, LX and LS) on VSEP´s latency and amplitude, and sensory and pain threshold (Pt) using a lineal mixed model regression analysis. We used CS combination, used in a commercial device, as reference model. RESULTS: Valid VSEP were obtained for CCX, CCS and CS but not in LX and LS. Both CCS and CCX tests showed significant amplitude increases. The same effect was observed in CCX using CCS as reference. Significant increases in Pt were found for CCX and LX. The same effect was observed in CCX using LX as reference. CONCLUSION: The results suggest that CC and C areas are active targets for taVNS but not for earlobe, as anatomical data support. Considering that amplitude reflects the synchronized electrical activity generated, we conclude the most effective topography is the simultaneous stimulation of cymba and concha. The use of X-sized electrodes increases the amplitudes and makes the stimulation more comfortable.

Equity and the Cuban National Health System's response to COVID-19.

Cuba's National Health System has managed to guarantee an effective and equitable response to COVID-19. Universal and free health coverage, based on primary care, follows the principle of equity and the greatest resources are allocated to areas of the lowest socioeconomic stratum (where higher risk is concentrated), followed by those of medium and high strata, in that order. This allowed for similar mortality rates in the three strata, and Cuban national mortality rate was one of the lowest in the Region of the Americas. Before the first case was identified in Cuba, a Plan for Coronavirus Prevention and Control was elaborated with multisectoral participation, and when the first case was confirmed the Temporary National Working Group to Fight COVID-19 was created as an advisory body of the government. The actions to face the pandemic began with preventive measures in the community, continued in the isolation centers and ended again in the community with actions of surveillance and follow up of recovered patients. Following the principle of territoriality, molecular diagnosis laboratories were created in the provinces that did not have one. Free medical care and treatment; the preparation of a single national intersectoral government plan; the use of particular strategies for research, diagnosis and case tracing; and the implementation of a universal protocol for disease prevention and treatment of confirmed cases made it possible to control the disease with a health equity perspective.

El Sistema Nacional de Salud de Cuba ha logrado garantizar una respuesta eficaz y con equidad en el enfrentamiento a la COVID-19. La cobertura de salud universal y gratuita, basada en la atención primaria, sigue el principio de equidad, por lo que los mayores recursos se asignan a los territorios del estrato socioeconómico más bajo, que concentra mayores riesgos de salud, seguidos de los de estratos medio y alto, en ese orden. Esto permitió tener tasas de letalidad similares en los tres estratos, y a nivel nacional la de Cuba es una de las tasas más bajas de la Región de las Américas. Antes de identificar el primer caso en Cuba, se elaboró el Plan para la Prevención y Control del Coronavirus, con participación multisectorial, y al confirmarse el primer caso se creó el Grupo Temporal de Trabajo para Enfrentar la COVID-19 como órgano asesor del Gobierno. Las acciones de enfrentamiento a la pandemia comienzan en la comunidad con medidas preventivas, continúan en los centros de aislamiento y terminan nuevamente en la comunidad, con acciones de vigilancia y acompañamiento a los enfermos recuperados. Siguiendo el principio de territorialidad, se crearon laboratorios de diagnóstico molecular en las provincias que no lo tenían. La atención médica y los tratamientos gratuitos; la preparación de un plan de gobierno intersectorial nacional único; la utilización de estrategias particulares para la pesquisa, diagnóstico y rastreo de casos; y la implementación de un protocolo universal para la prevención de la enfermedad y el tratamiento de los casos confirmados permitieron el control de la enfermedad con una perspectiva de equidad en salud.

O Sistema Nacional de Saúde de Cuba tem assegurado uma resposta eficaz e com equidade ao enfrentar a pandemia de COVID-19. A cobertura de saúde universal e gratuita baseada na atenção primária se pauta no princípio da equidade. Mais recursos são destinados às áreas de nível socioeconômico mais baixo que concentram risco de saúde maior e a seguir, nesta ordem, às áreas de nível socioeconômico médio e alto. Assim, a taxas de letalidade tem sido semelhante nos três níveis e a taxa nacional é uma das mais baixas da Região. Antes de o primeiro caso de COVID-19 ter sido detectado em Cuba, preparou-se o Plano para prevenção e controle do coronavírus com participação multissetorial. Quando o primeiro caso da doença foi confirmado, instituiu-se o Grupo de trabalho temporário para combater a COVID-19 como um órgão assessor do governo. As ações de combate à pandemia começam na comunidade com medidas preventivas, prosseguem nos centros de isolamento e retornam à comunidade com medidas de vigilância sanitária e o acompanhamento dos pacientes recuperados. E, seguindo o princípio de territorialidade, laboratórios de diagnóstico molecular foram instituídos nas províncias onde eles inexistiam. A atenção médica, o tratamento gratuito, a preparação de um plano de governo único intersetorial nacional, o emprego de estratégias próprias para pesquisa, diagnóstico e rastreio de casos e a implementação de um protocolo universal para prevenção da doença e tratamento dos casos confirmados possibilitaram controlar a doença de uma perspectiva de equidade em saúde.

Equity and the Cuban National Health System's response to COVID-19

[ABSTRACT]. Cuba’s National Health System has managed to guarantee an effective and equitable response to COVID-19. Universal and free health coverage, based on primary care, follows the principle of equity and the greatest resources are allocated to areas of the lowest socioeconomic stratum (where higher risk is concentrated), followed by those of medium and high strata, in that order. This allowed for similar mortality rates in the three strata, and Cuban national mortality rate was one of the lowest in the Region of the Americas. Before the first case was identified in Cuba, a Plan for Coronavirus Prevention and Control was elaborated with multisectoral participation, and when the first case was confirmed the Temporary National Working Group to Fight COVID-19 was created as an advisory body of the government. The actions to face the pandemic began with preventive measures in the community, continued in the isolation centers and ended again in the community with actions of surveillance and follow up of recovered patients. Following the principle of territoriality, molecular diagnosis laboratories were created in the provinces that did not have one. Free medical care and treatment; the preparation of a single national intersectoral government plan; the use of particular strategies for research, diagnosis and case tracing; and the implementation of a universal protocol for disease prevention and treatment of confirmed cases made it possible to control the disease with a health equity perspective.

[RESUMEN]. El Sistema Nacional de Salud de Cuba ha logrado garantizar una respuesta eficaz y con equidad en el enfrentamiento a la COVID-19. La cobertura de salud universal y gratuita, basada en la atención primaria, sigue el principio de equidad, por lo que los mayores recursos se asignan a los territorios del estrato socioeconómico más bajo, que concentra mayores riesgos de salud, seguidos de los de estratos medio y alto, en ese orden. Esto permitió tener tasas de letalidad similares en los tres estratos, y a nivel nacional la de Cuba es una de las tasas más bajas de la Región de las Américas. Antes de identificar el primer caso en Cuba, se elaboró el Plan para la Prevención y Control del Coronavirus, con participación multisectorial, y al confirmarse el primer caso se creó el Grupo Temporal de Trabajo para Enfrentar la COVID-19 como órgano asesor del Gobierno. Las acciones de enfrentamiento a la pandemia comienzan en la comunidad con medidas preventivas, continúan en los centros de aislamiento y terminan nuevamente en la comunidad, con acciones de vigilancia y acompañamiento a los enfermos recuperados. Siguiendo el principio de territorialidad, se crearon laboratorios de diagnóstico molecular en las provincias que no lo tenían. La atención médica y los tratamientos gratuitos; la preparación de un plan de gobierno intersectorial nacional único; la utilización de estrategias particulares para la pesquisa, diagnóstico y rastreo de casos; y la implementación de un protocolo universal para la prevención de la enfermedad y el tratamiento de los casos confirmados permitieron el control de la enfermedad con una perspectiva de equidad en salud.

[RESUMO]. O Sistema Nacional de Saúde de Cuba tem assegurado uma resposta eficaz e com equidade ao enfrentar a pandemia de COVID-19. A cobertura de saúde universal e gratuita baseada na atenção primária se pauta no princípio da equidade. Mais recursos são destinados às áreas de nível socioeconômico mais baixo que concentram risco de saúde maior e a seguir, nesta ordem, às áreas de nível socioeconômico médio e alto. Assim, a taxas de letalidade tem sido semelhante nos três níveis e a taxa nacional é uma das mais baixas da Região. Antes de o primeiro caso de COVID-19 ter sido detectado em Cuba, preparou-se o Plano para prevenção e controle do coronavírus com participação multissetorial. Quando o primeiro caso da doença foi confirmado, instituiu-se o Grupo de trabalho temporário para combater a COVID-19 como um órgão assessor do governo. As ações de combate à pandemia começam na comunidade com medidas preventi-vas, prosseguem nos centros de isolamento e retornam à comunidade com medidas de vigilância sanitária e o acompanhamento dos pacientes recuperados. E, seguindo o princípio de territorialidade, laboratórios de diagnóstico molecular foram instituídos nas províncias onde eles inexistiam. A atenção médica, o trata-mento gratuito, a preparação de um plano de governo único intersetorial nacional, o emprego de estratégias próprias para pesquisa, diagnóstico e rastreio de casos e a implementação de um protocolo universal para prevenção da doença e tratamento dos casos confirmados possibilitaram controlar a doença de uma per-spectiva de equidade em saúde.

Visión histórico-epidemiológica de la COVID-19 en el segundo mes de la epidemia en Cuba / Historical-epidemiological vision of COVID-19 in the second month of the epidemic in Cuba

Se presentan las medidas de contención tomadas durante el segundo mes de la presencia de la COVID-19 en Cuba y se analiza su efectividad. Para el estudio se aplicó el método histórico lógico, sustentado en la técnica de la revisión documental. Se revisaron los partes diarios publicados por el Ministerio de Salud Pública disponibles en el sitio web oficial del Centro Nacional de Información de Ciencias Médicas y Cubadebate (medio de información alternativo), entre el 10 de abril y el 9 de mayo del 2020. Se concluye que el periodo de estudio corresponde con los días de mayor intensidad de la epidemia en Cuba, hasta esa fecha. Se logró adelantar el pico de la epidemia, en casi un mes, hecho que demuestra la pertinencia de las medidas de control tanto epidemiológicas y sociales que se implementaron. La estrategia de vigilancia de los sospechosos y contactos, así como el ingreso precoz y tratamiento de los casos confirmados, permitieron el logro de un elevado porcentaje de casos recuperados y una escasa mortalidad, con cifras de letalidad de 4,4 por ciento(AU)

The containment measures taken during the second month of the presence of COVID-19 in Cuba are presented in this work and their effectiveness is analyzed. For the study, the logical historical method was used, based on the technique of documentary review. The daily reports published by the Ministry of Public Health which are available on the official website of the National Center of Medical Sciences´ Information and Cubadebate (alternative information medium) from April 10 to May 9, 2020 were reviewed. It was concluded that the studied period corresponds to the most intense days of the epidemic in Cuba, until that date. It was managed to predict the peak of the epidemic, in almost a month, a fact that demonstrates the relevance of the epidemiological and social control measures that were implemented. The strategy of monitoring suspects and contacts, as well as the early admission and treatment of confirmed cases, favored the achievement of a high percentage of recovered cases, low mortality, and a 4.4 percent lethality(AU)

Equity and the Cuban National Health System's response to COVID-19 / Equidad y respuesta del Sistema Nacional de Salud de Cuba ante la COVID-19 / Equidade e resposta do Sistema Nacional de Saúde de Cuba à pandemia de COVID-19

ABSTRACT Cuba's National Health System has managed to guarantee an effective and equitable response to COVID-19. Universal and free health coverage, based on primary care, follows the principle of equity and the greatest resources are allocated to areas of the lowest socioeconomic stratum (where higher risk is concentrated), followed by those of medium and high strata, in that order. This allowed for similar mortality rates in the three strata, and Cuban national mortality rate was one of the lowest in the Region of the Americas. Before the first case was identified in Cuba, a Plan for Coronavirus Prevention and Control was elaborated with multisectoral participation, and when the first case was confirmed the Temporary National Working Group to Fight COVID-19 was created as an advisory body of the government. The actions to face the pandemic began with preventive measures in the community, continued in the isolation centers and ended again in the community with actions of surveillance and follow up of recovered patients. Following the principle of territoriality, molecular diagnosis laboratories were created in the provinces that did not have one. Free medical care and treatment; the preparation of a single national intersectoral government plan; the use of particular strategies for research, diagnosis and case tracing; and the implementation of a universal protocol for disease prevention and treatment of confirmed cases made it possible to control the disease with a health equity perspective.

RESUMEN El Sistema Nacional de Salud de Cuba ha logrado garantizar una respuesta eficaz y con equidad en el enfrentamiento a la COVID-19. La cobertura de salud universal y gratuita, basada en la atención primaria, sigue el principio de equidad, por lo que los mayores recursos se asignan a los territorios del estrato socioeconómico más bajo, que concentra mayores riesgos de salud, seguidos de los de estratos medio y alto, en ese orden. Esto permitió tener tasas de letalidad similares en los tres estratos, y a nivel nacional la de Cuba es una de las tasas más bajas de la Región de las Américas. Antes de identificar el primer caso en Cuba, se elaboró el Plan para la Prevención y Control del Coronavirus, con participación multisectorial, y al confirmarse el primer caso se creó el Grupo Temporal de Trabajo para Enfrentar la COVID-19 como órgano asesor del Gobierno. Las acciones de enfrentamiento a la pandemia comienzan en la comunidad con medidas preventivas, continúan en los centros de aislamiento y terminan nuevamente en la comunidad, con acciones de vigilancia y acompañamiento a los enfermos recuperados. Siguiendo el principio de territorialidad, se crearon laboratorios de diagnóstico molecular en las provincias que no lo tenían. La atención médica y los tratamientos gratuitos; la preparación de un plan de gobierno intersectorial nacional único; la utilización de estrategias particulares para la pesquisa, diagnóstico y rastreo de casos; y la implementación de un protocolo universal para la prevención de la enfermedad y el tratamiento de los casos confirmados permitieron el control de la enfermedad con una perspectiva de equidad en salud.

RESUMO O Sistema Nacional de Saúde de Cuba tem assegurado uma resposta eficaz e com equidade ao enfrentar a pandemia de COVID-19. A cobertura de saúde universal e gratuita baseada na atenção primária se pauta no princípio da equidade. Mais recursos são destinados às áreas de nível socioeconômico mais baixo que concentram risco de saúde maior e a seguir, nesta ordem, às áreas de nível socioeconômico médio e alto. Assim, a taxas de letalidade tem sido semelhante nos três níveis e a taxa nacional é uma das mais baixas da Região. Antes de o primeiro caso de COVID-19 ter sido detectado em Cuba, preparou-se o Plano para prevenção e controle do coronavírus com participação multissetorial. Quando o primeiro caso da doença foi confirmado, instituiu-se o Grupo de trabalho temporário para combater a COVID-19 como um órgão assessor do governo. As ações de combate à pandemia começam na comunidade com medidas preventivas, prosseguem nos centros de isolamento e retornam à comunidade com medidas de vigilância sanitária e o acompanhamento dos pacientes recuperados. E, seguindo o princípio de territorialidade, laboratórios de diagnóstico molecular foram instituídos nas províncias onde eles inexistiam. A atenção médica, o tratamento gratuito, a preparação de um plano de governo único intersetorial nacional, o emprego de estratégias próprias para pesquisa, diagnóstico e rastreio de casos e a implementação de um protocolo universal para prevenção da doença e tratamento dos casos confirmados possibilitaram controlar a doença de uma perspectiva de equidade em saúde.

COVID-19 in Cuba: Assessing the National Response.

The COVID-19 pandemic exhibits different characteristics in each country, related to the extent of SARS-CoV-2 local transmission, as well as the speed and effectiveness of epidemic response implemented by authorities. This study presents a descriptive epidemiological analysis of the daily and cumulative incidence of confi rmed cases and deaths in Cuba from COVID-19 in the fi rst 110 days after fi rst-case confi rmation on March 11, 2020. During this period, 2340 cases (20.7 x 100,000 population) were confi rmed, of which 86 patients died (case fatality 3.67%; 52 men and 34 women). Mean age of the deceased was 73.6 years (with a minimum of 35 years and a maximum of 101), with the average age of men lower than that of women. More than 70% of all deceased had associated noncommunicable diseases. The incidence curve ascended for fi ve weeks and then descended steadily. The average number of confi rmed cases and deaths for the last week included (June 23-28, 2020) were 25 and 1 respectively; the curve always moved within the most favorable forecast zone of available mathematical models and the effective reproductive number fell below 1 after the fi fth week following the onset of the epidemic.

[Equity and the Cuban National Health System's response to COVID-19Equidade e resposta do Sistema Nacional de Saúde de Cuba à pandemia de COVID-19]. / Equidad y respuesta del Sistema Nacional de Salud de Cuba ante la COVID-19.

Cuba's National Health System has managed to guarantee an effective and equitable response to COVID-19. Universal and free health coverage, based on primary care, follows the principle of equity, and the greatest resources are allocated to areas of the lowest socioeconomic stratum (which concentrates the higher health risks), followed by those of medium and high strata, in that order. This allowed for similar mortality rates in the three strata, and Cuban national mortality rate was one of the lowest in the Region of the Americas. Before the first case was identified in Cuba, a Plan for Coronavirus Prevention and Control was elaborated with multisectoral participation, and when the first case was confirmed the Temporary Working Group to Fight COVID-19 was created as an advisory body of the government. The actions to face the pandemic began with preventive measures in the community, continued in the isolation centers and ended again in the community with actions of surveillance and follow up of recovered patients. Following the principle of territoriality, laboratories of molecular diagnosis were created in the provinces that did not have it. Free medical care and treatment; the preparation of a single national intersectoral government plan; the use of particular strategies for research, diagnosis and case tracing; and the implementation of a universal protocol for disease prevention and treatment of confirmed cases allowed to control the disease with a perspective of equity in health.

O Sistema Nacional de Saúde de Cuba tem assegurado uma resposta eficaz e com equidade ao enfrentar a pandemia de COVID-19. A cobertura de saúde universal e gratuita baseada na atenção primária se pauta no princípio da equidade. Mais recursos são destinados às áreas de nível socioeconômico mais baixo que concentram risco de saúde maior e a seguir, nesta ordem, às áreas de nível socioeconômico médio e alto. Assim, a taxas de letalidade tem sido semelhante nos três níveis e a taxa nacional é uma das mais baixas da Região. Antes de o primeiro caso de COVID-19 ter sido detectado em Cuba, preparou-se o Plano para prevenção e controle do coronavírus com participação multissetorial. Quando o primeiro caso da doença foi confirmado, instituiu-se o Grupo de trabalho temporário para combater a COVID-19 como um órgão assessor do governo. As ações de combate à pandemia começam na comunidade com medidas preventivas, prosseguem nos centros de isolamento e retornam à comunidade com medidas de vigilância sanitária e o acompanhamento dos pacientes recuperados. E, seguindo o princípio de territorialidade, laboratórios de diagnóstico molecular foram instituídos nas províncias onde eles inexistiam. A atenção médica, o tratamento gratuito, a preparação de um plano de governo único intersetorial nacional, o emprego de estratégias próprias para pesquisa, diagnóstico e rastreio de casos e a implementação de um protocolo universal para prevenção da doença e tratamento dos casos confirmados possibilitaram controlar a doença de uma perspectiva de equidade em saúde.

Equidad y respuesta del Sistema Nacional de Salud de Cuba ante la COVID-19

[RESUMEN]. El Sistema Nacional de Salud de Cuba ha logrado garantizar una respuesta eficaz y con equidad en el enfrentamiento a la COVID-19. La cobertura de salud universal y gratuita, basada en la atención primaria, sigue el principio de equidad, por lo que los mayores recursos se asignan a los territorios del estrato socioeconómico más bajo, que concentra mayores riesgos de salud, seguidos de los de estratos medio y alto, en ese orden. Esto permitió tener tasas de letalidad similares en los tres estratos, y a nivel nacional la de Cuba es una de las tasas más bajas de la Región de las Américas. Antes de identificar el primer caso en Cuba, se elaboró el Plan para la Prevención y Control del Coronavirus, con participación multisectorial, y al confirmarse el primer caso se creó el Grupo Temporal de Trabajo para Enfrentar la COVID-19 como órgano asesor del Gobierno. Las acciones de enfrentamiento a la pandemia comienzan en la comunidad con medidas preventivas, continúan en los centros de aislamiento y terminan nuevamente en la comunidad, con acciones de vigilancia y acompañamiento a los enfermos recuperados. Siguiendo el principio de territorialidad, se crearon laboratorios de diagnóstico molecular en las provincias que no lo tenían. La atención médica y los tratamientos gratuitos; la preparación de un plan de gobierno intersectorial nacional único; la utilización de estrategias particulares para la pesquisa, diagnóstico y rastreo de casos; y la implementación de un protocolo universal para la prevención de la enfermedad y el tratamiento de los casos confirmados permitieron el control de la enfermedad con una perspectiva de equidad en salud.

[ABSTRACT]. Cuba's National Health System has managed to guarantee an effective and equitable response to COVID-19. Universal and free health coverage, based on primary care, follows the principle of equity, and the greatest resources are allocated to areas of the lowest socioeconomic stratum (which concentrates the higher health risks), followed by those of medium and high strata, in that order. This allowed for similar mortality rates in the three strata, and Cuban national mortality rate was one of the lowest in the Region of the Americas. Before the first case was identified in Cuba, a Plan for Coronavirus Prevention and Control was elaborated with multisectoral participation, and when the first case was confirmed the Temporary Working Group to Fight COVID-19 was created as an advisory body of the government. The actions to face the pandemic began with preventive measures in the community, continued in the isolation centers and ended again in the community with actions of surveillance and follow up of recovered patients. Following the principle of territoriality, laboratories of molecular diagnosis were created in the provinces that did not have it. Free medical care and treatment; the preparation of a single national intersectoral government plan; the use of particular strategies for research, diagnosis and case tracing; and the implementation of a universal protocol for disease prevention and treatment of confirmed cases allowed to control the disease with a perspective of equity in health.

[RESUMO]. O Sistema Nacional de Saúde de Cuba tem assegurado uma resposta eficaz e com equidade ao enfrentar a pandemia de COVID-19. A cobertura de saúde universal e gratuita baseada na atenção primária se pauta no princípio da equidade. Mais recursos são destinados às áreas de nível socioeconômico mais baixo que concentram risco de saúde maior e a seguir, nesta ordem, às áreas de nível socioeconômico médio e alto. Assim, a taxas de letalidade tem sido semelhante nos três níveis e a taxa nacional é uma das mais baixas da Região. Antes de o primeiro caso de COVID-19 ter sido detectado em Cuba, preparou-se o Plano para prevenção e controle do coronavírus com participação multissetorial. Quando o primeiro caso da doença foi confirmado, instituiu-se o Grupo de trabalho temporário para combater a COVID-19 como um órgão assessor do governo. As ações de combate à pandemia começam na comunidade com medidas preventivas, prosseguem nos centros de isolamento e retornam à comunidade com medidas de vigilância sanitária e o acompanhamento dos pacientes recuperados. E, seguindo o princípio de territorialidade, laboratórios de diagnóstico molecular foram instituídos nas províncias onde eles inexistiam. A atenção médica, o tratamento gratuito, a preparação de um plano de governo único intersetorial nacional, o emprego de estratégias próprias para pesquisa, diagnóstico e rastreio de casos e a implementação de um protocolo universal para prevenção da doença e tratamento dos casos confirmados possibilitaram controlar a doença de uma perspectiva de equidade em saúde.