Factors influencing the positivity of diagnostic tests for congenital syphilis.

OBJECTIVE: The objective of this study was to analyze the factors that influence the positivity of treponemal and non-treponemal tests in cases of congenital syphilis. METHODS: This cross-sectional and correlational study was carried out from the analysis of the database of Disease and Notification Information System (SINAN, in Portuguese) using the data obtained through the Epidemiological Surveillance Group 29, with 639 notifications of congenital syphilis between 2007 and 2018. The data were analyzed by a descriptive and inferential analysis from logistic regression with a significance level of 5% (p≤0.05). RESULTS: The positivity of the treponemal test was higher by 4.5 times in infants living in rural areas and 19.6 times among those whose mothers obtained the diagnosis of syphilis after birth. The treponemal test showed positivity 3.2 times higher for the variable "having been diagnosed between 2007 and 2015" and 5.5 times higher for the variable "having been diagnosed with maternal syphilis in the postpartum period." CONCLUSION: This study shows that testing during prenatal care is essential for early diagnosis and prevention of syphilis complications.

Spatial variability of mother-to-child human immunodeficiency virus transmission in a province in the Brazilian Rainforest: An ecological study.

The mother-to-child transmission (MTCT) of the human immunodeficiency virus (HIV) remains a serious public health problem in the Brazilian Rainforest. This study aimed to spatially analyze this type of infection between 2007 and 2018 in Pará, which is the second-largest Brazilian state in the Brazilian Rainforest and also has the highest MTCT of HIV in Brazil. We analyzed the incidence rates of HIV (including the acquired immunodeficiency syndrome (AIDS) by MTCT as the main route of infection in children younger than 13 years old and whose mothers live in Pará. We employed spatial autocorrelation, spatial scanning, and geographic-weighted spatial regression techniques. In the period of this study, 389 new HIV/AIDS were noted, with territorial expansion of the incidence rates in the municipalities in northern and southern Pará having the highest rates. São Francisco do Pará had high spatial risk and high-spatiotemporal risk clusters comprising municipalities in western and south-western Pará between 2013 and 2016. The spatial variability of HIV/AIDS incidence rates was found to be common in the number of men and women with formal jobs; unemployed ≥18 years old people; elementary school pupils; and families enrolled in the "Single Registry for Social Programs". The social equity approach in Pará guarantee pregnant women access to preventive, diagnostic and treatment health services and their children should be supported to eliminate the MTCT of HIV in Pará.

Missed opportunities in preventing mother-to-child transmission of syphilis in the indigenous population in central Brazil / Oportunidades perdidas na prevenção da transmissão vertical da sífilis na população indígena do Brasil central

Abstract Objectives: to estimate the detection rate of syphilis in pregnant women, the occurrence of congenital syphilis, and the rate of mother-to-child transmission of syphilis, in addition to analyzing missed opportunities in the prevention of mother-to-child transmission in the indigenous population. Methods: descriptive study of cases of pregnant indigenous women with syphilis resulting or not in a case of congenital syphilis. The data were obtained from the Sistema de Informação de Agravos de Notificação (Information System of Notifable Diseases), the records of the Infecções Sexualmente Transmissíveis do Distrito Sanitário Especial Indígena (Sexually Transmitted Infections in the Special Indigenous Health District), and the medical records of pregnant indigenous women in 2015. The database and the calculation of syphilis rates in pregnant women, congenital syphilis, and mother-to-child transmission were carried out. Data on prenatal, diagnosis and treatment of syphilis during pregnancy were collected from the medical records. Results: the detection rate of syphilis in pregnant women reached 35.2/1,000 live births (LB), the occurrence of congenital syphilis encompassed 15.7/1.000 LB, and the rate of mother-to-child transmission was 44.8%. Six (24%) pregnant women started prenatal care in the first trimester and seven (28%) attended seven or more consultations. The diagnosis of syphilis was late and only nine (36%) women were properly treated. Conclusions: failures in the diagnosis and the adequate treatment of pregnant women with syphilis compromised the prevention of mother-to-child transmission of the disease.

Resumo Objetivos: estimar a taxa de detecção de sífilis em gestantes, a incidência de sífilis congênita e a taxa de transmissão verticalda sífilis e analisar as oportunidades perdidas na prevenção da transmissão vertical na população indígena. Métodos: estudo descritivo de casos de gestantes indígenas com sífilis que tiveram ou não como desfecho um caso de sífilis congênita. Os dados foram obtidos do Sistema de Informação de Agravos de Notificação, dos registros da área de Infecções Sexualmente Transmissíveis do Distrito Sanitário Especial Indígena e dos prontuários de gestantes indígenas, no ano de 2015. Realizou-se o relacionamento da base de dados e cálculo de taxas de sífilis em gestantes, sífilis congênita e de transmissão vertical. Nos prontuários, coletaram-se dados do pré-natal, diagnóstico e tratamento da sífilis na gestação. Resultados: a taxa de detecção de sífilis em gestantes foi de 35,2/1.000 nascidos vivos (NV), a incidência de sífilis congênita, 15,7/1.000 NV e a taxa de transmissão vertical, 44,8%. Evidenciou-se que seis (24%) gestantes iniciaram o pré-natal no primeiro trimestre e sete (28%) realizaram sete ou mais consultas. O diagnóstico de sífilis foi tardio e apenas nove (36%) realizaram adequadamente o tratamento. Conclusões: falhas no diagnóstico e no tratamento adequado de gestantes com sífilis comprometeram a prevenção da transmissão vertical da doença.

Informe sobre transmisión vertical de la hepatitis B en el Hospital Materno Infantil Sardá de la Ciudad de Buenos Aires durante el período 2018-2020 / Report on vertical transmission of hepatitis B at Hospital Materno Infantil Sardá in the City of Buenos Aires for the period 2018-2020

La hepatitis B es una infección vírica que afecta al hígado, puede dar lugar tanto a un cuadro agudo como a una enfermedad crónica, y se transmite por la vía sexual, vertical y parenteral. En este informe, se describe la situación mundial y nacional de esta patología, y su transmisión vertical, así como la caracterización de niños expuestos al virus durante el embarazo, nacidos en el Hospital Materno Infantil Ramón Sardá entre 2018 y 2021.

Interventions to improve early retention of patients in antiretroviral therapy programmes in sub-Saharan Africa: A systematic review.

BACKGROUND: Several interventions to improve long term retention (12 months and above) on treatment have been rigorously evaluated in Sub-Saharan Africa (SSA). However, research on interventions to improve retention of patients in the early stages of treatment (6 months) during this era of Universal Test and Treat has only recently emerged. The aim of this study is to systematically map evidence of interventions used to improve early retention of patients in antiretroviral therapy (ART) programmes in SSA. METHODS: We searched PubMed, EMBASE and Cochrane electronic databases to identify studies describing interventions aimed at improving early retention in ART treatment. We applied the methodological frameworks by Arksey and O'Malley (2005) and Levac et al. (2010). We also followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist. Interventions were categorized according to key broad areas in the existing literature. RESULTS: A total of 2,241 articles were identified of which 19 met the inclusion criteria and were eligible for this review, with the majority either being randomized control trials 32% (n = 6) or cohort studies 32% (n = 6). The studies reviewed were conducted in 11 SSA countries. The most common interventions described under key broad areas included: Health system interventions such as Universal Test-and-Treat, integration of ART initiation, HIV Testing and Counselling and Antenatal Care services and reduction of ART drug costs; Patient centered approaches such as fast track ART initiation, Differentiated Drug Delivery models and point of care HIV birth testing; Behavioral interventions and support through lay counselors, mentor mothers, nurse counselors and application of quality improvement interventions and financial incentives. Majority of the studies targeted the HIV positive adults and pregnant women. CONCLUSION: With the introduction of Universal Test-and-Treat and same-day initiation of ART, findings suggest that adoption of policies that expand ART uptake with the goal of reducing HIV transmission at the population level, promoting patient centered approaches such as fast track ART initiation, Differentiated Service Delivery models and providing adequate support through Mentor Mothers, lay and nurse counselors may improve early retention in HIV care in SSA. However, these interventions have only been tested in few countries in the region which points to how hard evidence based HIV programming is. Further research investigating the impact of individual and a combination of interventions to improve early retention in HIV care, including for various groups at high risk of attrition, is warranted across SSA countries to fast track the achievement of 95-95-95 Joint United Nations Programme on HIV/AIDS (UNAIDS) targets by 2030.

Maternal HPV-antibodies and seroconversion to HPV in children during the first 3 years of life.

To assess the dynamics of human papillomavirus (HPV) serology, we analyzed HPV6-,11-,16-,18-, and 45 antibodies in infants during the first 36 months of their life. Serial serum samples of 276/327 mother-child pairs were collected at baseline (mothers) and at months 1, 2, 6, 12, 24 and 36 (offspring), and tested for HPVL1-antibodies using the GST-L1 assay. Concordance between maternal and infant HPV-antibody levels remained high until month-6 (p < = 0.001), indicating maternal antibody transfer. At 1 month, 40-62% of the infants tested seropositive to any of the 5 HPV-types. Between 1-3 years of age, 53% (58/109) of the children born to HPV-seronegative mothers tested HPV-seropositive. Times to positive seroconversion varied between13.4 and 18.7 months, and times to negative seroconversion (decay) between 8.5 and 9.9 months. Significant independent predictors of infants' seroconversion to LR-HPV were hand warts and mother's history of oral warts and seroconversion to LR-HPV. No predictors of seroconversion to HR-HPV were identified. Maternal HPV-IgG-antibodies are transferred to her offspring and remain detectable for 6 months, corroborating the IgG molecule's half-life. Seroconversion to HPV-genotypes 6, 11, 16 and 18 was confirmed among children born to HPV-seronegative mothers, implicating an immune response to these HPV-genotypes during early infancy.

Final HIV status outcome for HIV-exposed infants at 18 months of age in nine states and the Federal Capital Territory, Nigeria.

INTRODUCTION: While antiretroviral therapy (ART) coverage for pregnant women has undergone steady scale-up, Nigeria's final mother- to-child transmission of HIV (MTCT) rate remains unacceptably high at 10%. This study aimed to determine final outcomes (MTCT rates) and their correlates among HIV-exposed infants (HEI) in nine states and the Federal Capital Territory, Nigeria. METHODS: This retrospective, cross-sectional study was conducted at 96 primary, secondary and tertiary health facilities supported by the Institute of Human Virology Nigeria. Data was abstracted for a birth cohort of HEI born between October 30, 2014 and April 30, 2015 whose 18-24 month final outcome was assessed by October 30, 2016. Only infants with a six-week first DNA PCR result, and a rapid HIV antibody test result at age 18 to 24 months were included. Multivariate logistic regression (adjusted odds ratios [aORs]) evaluated for predictors of HIV positivity at ≥18 months. RESULTS: After testing at ≥18 months, 68 (2.8%) of the 2,405 exposed infants in the birth cohort were HIV-positive. After a minimum of 18 months of follow-up, 51 (75%) HIV-positive infants were alive on ART; 7 (10%) had died, 5 (7.3%) were lost to follow-up and 5 (7.3%) were transferred out. Rural maternal residence, lack of maternal ART/ARV prophylaxis, mixed infant feeding and infant birth weight less than 2.5 kg correlated with an HIV-positive status for infant final outcomes. CONCLUSION: The final HIV positivity rate of 2.8% is encouraging, but is not population-based. Nevertheless, supported by our findings, we recommend continued programmatic focus on early access to quality prenatal care and maternal ART for pregnant women, especially for women living with HIV in rural areas. Furthermore, implementation of nationwide sensitization and education on six-months' exclusive infant breastfeeding with concurrent maternal ART should be strengthened and sustained to reduce MTCT rates.

Informe epidemiológico de sífilis congénita en el Hospital Materno infantil Ramón Sardá de la CABA durante el trienio 2018-2020 / Epidemiological report of congenital syphilis at Ramón Sardá Maternal and Child Hospital of CABA during the 2018-2020 triennium

El hospital Materno Infantil Ramón Sardá, de la Ciudad de Buenos Aires, es un centro perinatológico de alta complejidad del subsector público de salud, que asiste más de 5000 nacimientos por año. Es el hospital que reportó la mayor cantidad de casos de sífilis congénita en el período 2018-2019. El objetivo de este informe es caracterizar los casos asistidos durante el trienio 2018-2020.

Analysis of Related Factors of Mother-to-Child Transmission of AIDS and Evaluation of Measures to Prevent Mother-to-Child Transmission.

AIDS is still a major public health facing the world. With the implementation of AIDS prevention projects and the continuous maturity of technology, more and more HIV-positive women choose to have children. However, the children born to these women are a special group. Exposure to HIV and antiviral drugs during the fetal period can increase the success rate of children's elimination of the mother, which is worthy of attention and research. This article focuses on the analysis of the related factors of mother-to-child transmission of AIDS and the evaluation of mother-to-child blocking measures, using the method of field research to conduct experiments on AIDS patients in this city who are pregnant and provide them with antidrug treatment and some barrier measures. Then, the mother-to-child transmission rate was recorded, and the experimental results showed that the antidrug treatment plan is related to mother-to-child transmission. After antidrug treatment, the transmission rate of single-drug treatment is reduced by 5%, and the transmission rate of combined drug treatment is reduced by 10%. It can be seen from this that antidrug treatment is an effective measure to block mothers and babies.

An analysis of the HIV testing cascade of a group of HIV-exposed infants from birth to 18 months in peri-urban Khayelitsha, South Africa.

BACKGROUND: Despite the reduction of HIV mother-to-child transmission, there are concerns regarding transmission rate in the breastfeeding period. We describe the routine uptake of 6 or 10 (6/10) weeks, 9 months and 18 months testing, with and without tracing, in a cohort of infants who received HIV PCR testing at birth (birth PCR) (with and without point of care (POC) testing) in a peri-urban primary health care setting in Khayelitsha, South Africa. METHODS: In this cohort study conducted between November 2014 and February 2018, HIV-positive mothers and their HIV-exposed babies were recruited at birth and all babies were tested with birth PCR. Results of routine 6/10 weeks PCR, 9 months and 18 months testing were followed up by a patient tracer. We compared testing at 6/10 weeks with a subgroup from historical cohort who was not tested with birth PCR. RESULTS: We found that the uptake of 6/10 weeks testing was 77%, compared to 82% with tracing. When including all infants in the cascade and comparing to a historical cohort without birth testing, we found that infants who tested a birth were 22% more likely to have a 6/10 weeks test compared to those not tested at birth. There was no significant difference between the uptake of 6/10 weeks testing after birth PCR POC versus birth PCR testing without POC. Uptake of 9 months and 18 months testing was 39% and 24% respectively. With intense tracing efforts, uptake increased to 45% and 34% respectively. CONCLUSION: Uptake of HIV testing for HIV-exposed uninfected infants in the first 18 months of life shows good completion of the 6/10 weeks PCR but suboptimal uptake of HIV testing at 9 months and 18 months, despite tracing efforts. Birth PCR testing did not negatively affect uptake of the 6/10 weeks HIV test compared to no birth PCR testing.

High Incidence of Congenital Syphilis in New Zealand: A New Zealand Pediatric Surveillance Unit Study.

BACKGROUND: Syphilis, a disease once in decline, has made a resurgence worldwide. New Zealand has had increasing syphilis rates since enhanced syphilis surveillance was initiated in 2013. This study reports epidemiologic, descriptive and treatment data on management of infants prenatally exposed or vertically infected with syphilis across New Zealand as reported by pediatricians. METHODS: Over a 26-month period from April 2018 to May 2020 (inclusive), pediatricians throughout New Zealand notified potential, probable and confirmed cases of congenital syphilis to the New Zealand Pediatric Surveillance Unit. National reporting numbers were concurrently ascertained to demonstrate reporting accuracy. RESULTS: Thirty-two cases were notified, comprised of 25 infants born to women with positive antenatal syphilis serology (5 whom developed congenital syphilis), and 7 infants diagnosed with congenital syphilis after birth where syphilis was not diagnosed in pregnancy. There were 12 cases of congenital syphilis; an incidence rate of 9.4 cases per 100,000 live births. Nine of the 12 infants had clinical features of congenital syphilis. One-third of maternal infections were early syphilis, and the women who gave birth to infected infants were less likely to have received antenatal care, adequate treatment and follow-up monitoring of treatment for syphilis during pregnancy. CONCLUSIONS: This study quantifies an important burden of disease from congenital syphilis in our population. Case finding and treatment of syphilis in pregnancy are critical to prevent this. Our findings support the urgent need for measures such as repeat maternal syphilis screening in early third trimester; whether by affected region or instituted for all, in the context of rising cases.

Meta-analysis on COVID-19-pregnancy-related placental pathologies shows no specific pattern.

Coronavirus disease 2019 (COVID-19) pneumonia rarely occurs in pregnant women. Case reports indicate that fibrin and lymphohistiocytic lesions in placentas may be typical. However, a meta-analysis to clarify whether there is a COVID-19-associated pattern of placental lesions has not yet been conducted. Systematic literature search with meta-analysis of publications on 10 or more cases of pregnancy with SARS-CoV-2 infection and placenta examination (30 publications from 2019 to 2021; 1452 placenta cases) was performed. The meta-analysis did not reveal any COVID-19-specific placenta changes. The incidence of both vascular and inflammatory lesions was mainly comparable to that of non-COVID-19 pregnancies. Transplacental viral transmission is very rare and there are no typical placental changes. The most important prognostic factor seems to be maternal-fetal hypoxia in the context of pneumonia.

Characteristics of neonatal herpes simplex virus infections in Germany: results of a 2-year prospective nationwide surveillance study.

OBJECTIVE: To assess incidence and burden of neonatal herpes simplex virus (HSV) infections and to explore possible transmission routes. METHODS: A 2-year prospective nationwide surveillance study performed in 2017 and 2018. All German paediatric departments (n=464 in 2017, n=441 in 2018) were contacted on a monthly basis to report potential cases of neonatal HSV infections. Infants with a postnatal age of ≤60 days and a positive HSV PCR or HSV culture from skin, mucous membrane, vesicles or conjunctival smear, blood or cerebrospinal fluid were included in the study. RESULTS: 37 cases were analysed. 29 patients who exhibited no or only mild clinical symptoms were discharged home without organ damage or neurological abnormalities. Four patients showed significant neurological impairment, one patient required liver transplantation and two patients died during in-patient treatment. The 2-year incidence of neonatal HSV infections was 2.35 per 100 000 live births (95% CI 1.69 to 3.02) and disease-specific mortality was 0.13 per 100 000 live births (95% CI 0.04 to 0.21). Data on possible transmission routes were available in 23 cases. In 20 cases, an orofacial HSV infection was present in one or more family members. An active maternal genital HSV infection was reported in 3 cases. CONCLUSION: Neonatal HSV infections are rare in Germany. Most infants have a benign clinical course, but some infants are severely affected. Postnatal HSV exposure may account for a considerable number of neonatal HSV infections.

Effect of COVID-19 on HIV, tuberculosis, and prevention of mother-to-child transmission of HIV indicators in Mopani district, South Africa.

BACKGROUND: To prevent the spread of SARS-CoV-2, many countries instituted lockdown measures. As the virus was initially slow to spread to rural areas in South Africa, Mopani district in Limpopo Province did not experience a high incidence of COVID-19 until the second wave in December 2020. Until then, lockdown measures were more likely than SARS-CoV-2 infections to have an adverse impact on health services. OBJECTIVES: To analyse HIV, tuberculosis (TB) and prevention of mother-to-child transmission of HIV (PMTCT) indicator trends in Mopani during the COVID-19 lockdown and two COVID-19 waves. METHODS: Using monthly data from the District Health Information System from February 2019 to December 2020, we conducted a retrospective review of data elements and indicators that fall into the following domains: primary healthcare head count (HC), HIV, antiretroviral treatment (ART), PMTCT and TB. Aggregated data were analysed, and an interrupted time series analysis was conducted. We assessed percentage changes between the January - March 2020 and April - June 2020 periods, and differences in means for the period April - December 2019 v. the period April - December 2020 were assessed for statistical significance. RESULTS: At the start of the first wave in April 2020, a statistically significant decline of 10% was recorded for total HC utilisation rates (p=0.1). We also found declines of 665 HIV tests (from 1 608 to 942) and 22 positive HIV tests (from 27 to 4) for children between the ages of 18 months and 14 years (p=0.05), with no recovery. Significant declines were also recorded for children aged <15 years starting (change from 35 to 21) and remaining (change from 4 032 to 3 986) on ART, as well as for adults starting ART (change from 855 to 610) at the onset of the first wave (p=0.01). No significant change was detected in PMTCT and TB indicators during the first wave. Pronounced decreases in HC were recorded in December, during the country's second wave (change from 237 965 to 227 834). CONCLUSION: Declines were recorded for most indicators in Mopani, with HC being affected the most at the start of the first wave and not showing any significant recovery between waves. Strategies are required to mitigate the effects of future COVID-19 waves and encourage positive health-seeking behaviour.

The Current Challenges in Developing Biological and Clinical Predictors of Congenital Cytomegalovirus Infection.

Congenital cytomegalovirus (CMV) infection may cause severe long-term sequelae. Recent studies have demonstrated that early antiviral therapy for infants with symptomatic congenital CMV (cCMV) infection may improve neurological outcomes; thus, accurate identification of newborns at high risk of cCMV infection may contribute to improved outcomes in affected children. However, maternal serological screening for cCMV infection by diagnosing primary infection during pregnancy, which is a popular screening strategy, is inefficient, because the number of cCMV infections with nonprimary causes, including reactivation of or reinfection with CMV, is larger than that of cCMV infections with primary causes. Low levels of neutralizing antibodies against pentameric complex and potent CMV-specific T cell-mediated immune responses are associated with an increased risk of cCMV infection. Conversely, our prospective cohort studies revealed that the presence of maternal fever/flu-like symptoms, threatened miscarriage/premature delivery, or actual premature delivery are risk factors for cCMV infection among both women with normal pregnancies and those with high-risk ones, regardless of whether the infection is primary or nonprimary. This review focused on host immune responses to human CMV and current knowledge of potential biological and clinical factors that are predictive of cCMV infection.

Mother-to-child transmission of HIV infection and its associated factors in the district of Bilene, Gaza Province-Mozambique.

BACKGROUND: Mother-to-child transmission of HIV infection is a significant problem in Mozambique. This study aims to determine the risk factors associated with mother-to-child transmission of HIV in rural Mozambique. METHODS: Retrospective case-control study in a rural area of Bilene District, on the coast of southern Mozambique, performed from January 2017 to June 2018. The analysis considered the clinical data of HIV exposed children with definitive HIV positive results and their respective infected mothers (cases), and the data of HIV exposed children with definitive HIV negative results and their respective infected mothers (controls) registered in At Risk Child Clinics from 1st January 2017 to 30th June 2018 at the Macia and Praia de Bilene health facilities in Bilene district, Gaza province-Mozambique. RESULTS: Ninety pregnant women with HIV were involved in the study, including 30 who had transmitted the infection to their children and 60 who had not. Statistical analysis, adjusted for maternal age and gestational age at first antenatal care visit, showed that independent risk factors for transmission were gestational age at first visit (adjusted odds ratio [aOR] 1.19, 95% confidence interval [CI] 1.05-1.36), non-adherence to combination antiretroviral therapy (56.7% vs. 5%; aOR 14.12, 95% CI 3.15-63.41); a viral load of 1000 copies/mL or more (90% vs. 5%; aOR: 156, 95% CI 22.91-1,062) and female sex of the neonate (80% vs. 51.7%; aOR: 4.43, 95% CI 1.33-15.87). CONCLUSION: A high viral load and non-adherence to antiretroviral therapy are important predictors of mother-to-child HIV transmission.

Adverse pregnancy outcomes during the COVID-19 lockdown. A descriptive study.

BACKGROUND: The ongoing spread coronavirus disease worldwide has caused major disruptions and led to lockdowns. Everyday lifestyle changes and antenatal care inaccessibility during the coronavirus disease 2019 (COVID-19) pandemic have variable results that affect pregnancy outcomes. This study aimed to assess the alterations in stillbirth, neonatal-perinatal mortality, preterm birth, and birth weight during the COVID-19 national lockdown. METHODS: We used the data from the Jordan stillbirths and neonatal death surveillance system to compare pregnancy outcomes (gestational age, birth weight, small for gestational age, stillbirth, neonatal death, and perinatal death) between two studied periods (11 months before the pandemic (May 2019 to March 2020) vs. 9 months during the pandemic (April 2020 to March 1st 2020). Separate multinomial logistic and binary logistic regression models were used to compare the studied outcomes between the two studied periods after adjusting for the effects of mother's age, income, education, occupation, nationality, health sector, and multiplicity. RESULTS: There were 31106 registered babies during the study period; among them, 15311 (49.2%) and 15795 (50.8%) births occurred before and during the COVID-19 lockdown, respectively. We found no significant differences in preterm birth and stillbirth rates, neonatal mortality, or perinatal mortality before and during the COVID-19 lockdown. Our findings report a significantly lower incidence of extreme low birth weight (ELBW) infants (<1kg) during the COVID-19 lockdown period than that before the lockdown (adjusted OR 0.39, 95% CI 0.3-0.5: P value <0.001) CONCLUSIONS: During the COVID-19 lockdown period, the number of infants born with extreme low birth weight (ELBW) decreased significantly. More research is needed to determine the impact of cumulative socio-environmental and maternal behavioral changes that occurred during the pandemic on the factors that contribute to ELBW infants.

Seroprevalence of SARS-CoV-2 immunoglobulins in pregnant women and neonatal cord blood from a highly impacted region.

There is inadequate screening for SARS-COV-2 during pregnancy. We aimed to determine the impact of maternal and neonatal cord blood SARS-COV-2 antibodies and placental transfer ratios in a region with a low screening plan. We performed a blind study in one of the SARS-CoV-2 epicenters in South America. 32% of pregnant women were serological positive. Importantly, there is an efficient passive immunization of the fetus to SARS-CoV-2. We report high incidence of SARS-CoV-2 infection during pregnancy, which is higher than officially reported. Therefore the need of active immunization to enhance maternal protection and fetal passive immunization.

Changes in Clinical Care of the Newborn During COVID-19 Pandemic: From the Womb to First Newborn Visit.

COVID-19 has afflicted the health of children and women across all age groups. Since the outbreak of the pandemic in December 2019, various epidemiologic, immunologic, clinical, and pharmaceutical studies have been conducted to understand its infectious characteristics, pathogenesis, and clinical profile. COVID-19 affects pregnant women more seriously than nonpregnant women, endangering the health of the newborn. Changes have been implemented to guidelines for antenatal care of pregnant women, delivery, and newborn care. We highlight the current trends of clinical care in pregnant women and newborns during the COVID-19 pandemic.

COVID-19 and pregnancy: Lessons from 2020.

The outbreak and spread of the coronavirus disease 2019 pandemic has led to an unprecedented wealth of literature on the impact of human coronaviruses on pregnancy. The number of case studies and publications alone are several orders of magnitude larger than those published in all previous human coronavirus outbreaks combined, enabling robust conclusions to be drawn from observations for the first time. However, the importance of learning from previous human coronavirus outbreaks cannot be understated. In this narrative review, we describe what we consider to the major learning points arising from the SARS-CoV-2 pandemic in relation to pregnancy, and where these confound what might have been expected from previous coronavirus outbreaks.