Dataset Information

Vertical transmission and clinical outcome of the neonates born to SARS-CoV-2-positive mothers: a tertiary care hospital-based observational study.

ABSTRACT:

Background

Neonatal transmission of SARS-CoV-2 from positive mothers to their babies has been a real concern, opening the arena of research in this area.

Objective

To detect the possibility of vertical transmission of SARS-CoV-2 from COVID-19-positive mothers to their neonates and the clinicopathological outcome in them.

Design

A single-centre, prospective, observational study involving 47 COVID-19-positive mothers and their neonates.

Setting

A tertiary care hospital in Eastern India.

Participants

Neonates born to SARS-CoV-2-infected mothers.

Main outcome measures

We investigated the SARS-CoV-2 positivity rate by real-time reverse transcriptase-PCR (RT-PCR) done twice (on admission and after 24 hours of admission) in neonates born to SARS-CoV-2-positive mothers, who tested RT-PCR positive for this virus in their nasopharyngeal swab. Clinical outcome was also assessed in these neonates during their hospital stay.

Results

Out of 47 neonates born to SARS-CoV-2-positive mothers, four were SARS-CoV-2 positive by RT-PCR. All the neonates in our study were discharged home in stable condition after management of acute complications. None of them required readmission.

Conclusion

Vertical transmission occurs in neonates born to COVID-19-positive mothers; however, the risk is small. Majority of the neonates remain asymptomatic with good clinical outcome.

SUBMITTER: Kumar P

PROVIDER: S-EPMC8526519 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Vertical transmission and clinical outcome of the neonates born to SARS-CoV-2-positive mothers: a tertiary care hospital-based observational study.

Kumar Pradeep P Fadila Prasad Arun A Akhtar Ambrin A Chaudhary Bhabesh Kant BK Tiwari Lokesh Kumar LK Chaudhry Neha N

BMJ paediatrics open 20211019 1

<h4>Background</h4>Neonatal transmission of SARS-CoV-2 from positive mothers to their babies has been a real concern, opening the arena of research in this area.<h4>Objective</h4>To detect the possibility of vertical transmission of SARS-CoV-2 from COVID-19-positive mothers to their neonates and the clinicopathological outcome in them.<h4>Design</h4>A single-centre, prospective, observational study involving 47 COVID-19-positive mothers and their neonates.<h4>Setting</h4>A tertiary care hospital ...[more]

PMID: 34697599

Similar Datasets

Project description:Despite rapidly evolving knowledge about COVID 19 infection, routes of perinatal COVID 19 transmission and viral load in mother neonate dyad remain uncertain. Data were analysed to describe the clinicodemographic profile and viral load in neonates born to COVID 19 positive mothers. Of 2947 deliveries, 69 mothers were COVID 19 positive (2.3%), with 1 abortion, 2 macerated stillbirths and 2 fresh stillbirths as pregnancy outcomes. Of 65 tested neonates, 10.7% (7) were confirmed COVID 19 positive by RTPCR (reverse transcriptase-polymerase chain reaction). Viral load (cycle threshold, Ct of E, RDRp) in neonates was comparable with the Ct reported from adults; however, neonates had milder clinical manifestations. All 7 neonates who tested positive for COVID 19 were subsequently discharged. Six of the 7 neonates were asymptomatic and 1 neonate needed respiratory support (indication being prematurity) which resolved after 48 h. Maternal and neonatal comparison of Ct of E and RdRp gene was statistically non-significant (25.97 vs 19.68, p = 0.34 and 26.5 vs 25.0, p = 0.84). Viral loads of mothers with COVID 19 positive neonates compared with mothers with COVID 19 negative neonates for E and RdRp gene were also statistically non-significant (25 vs 27.19, p = 0.63 and 19.6 vs 27.6, p = 0.08). The majority (93%) of neonates tested later than 48 h (roomed in with mother and breastfed) tested negative.Conclusion: The study supports milder manifestation in COVID 19 positive neonates. Risk of transmission from COVID 19 positive mother to neonate by rooming-in and breastfeeding is low. In this study on a limited number of neonates, maternal viral load was not found to be associated with the positivity status or severity of the illness of neonate. What is Known: • Neonates born to COVID 19 positive mothers are at risk of COVID 19 infection. What is New: • Risk of transmission of COVID 19 from mother to neonate, with rooming-in and breastfeeding, appears low. • In this study on a limited number of neonates, maternal viral load of COVID 19 (E and RdRp cycle thresholds) was not associated with severity of illness or COVID 19 positivity in neonates.

Project description:ImportanceAlthough several studies have provided information on short-term clinical outcomes in children with perinatal exposure to SARS-CoV-2, data on the immune response in the first months of life among newborns exposed to the virus in utero are lacking.ObjectiveTo characterize systemic and mucosal antibody production during the first 2 months of life among infants who were born to mothers infected with SARS-CoV-2.Design, setting, and participantsThis prospective cohort study enrolled 28 pregnant women who tested positive for SARS-CoV-2 infection and who gave birth at Policlinico Umberto I in Rome, Italy, from November 2020 to May 2021, and their newborns. Maternal and neonatal systemic immune responses were investigated by detecting spike-specific antibodies in serum, and the mucosal immune response was assessed by measuring specific antibodies in maternal breastmilk and infant saliva 48 hours after delivery and 2 months later.ExposuresMaternal infection with SARS-CoV-2 in late pregnancy.Main outcomes and measuresThe systemic immune response was evaluated by the detection of SARS-CoV-2 IgG and IgA antibodies and receptor binding domain-specific IgM antibodies in maternal and neonatal serum. The mucosal immune response was assessed by measuring spike-specific antibodies in breastmilk and in infant saliva, and the presence of antigen-antibody spike IgA immune complexes was investigated in breastmilk samples. All antibodies were detected using an enzyme-linked immunosorbent assay.ResultsIn total, 28 mother-infant dyads (mean [SD] maternal age, 31.8 [6.4] years; mean [SD] gestational age, 38.1 [2.3] weeks; 18 [60%] male infants) were enrolled at delivery, and 21 dyads completed the study at 2 months' follow-up. Because maternal infection was recent in all cases, transplacental transfer of virus spike-specific IgG antibodies occurred in only 1 infant. One case of potential vertical transmission and 1 case of horizontal infection were observed. Virus spike protein-specific salivary IgA antibodies were significantly increased (P = .01) in infants fed breastmilk (0.99 arbitrary units [AU]; IQR, 0.39-1.68 AU) vs infants fed an exclusive formula diet (0.16 AU; IQR, 0.02-0.83 AU). Maternal milk contained IgA spike immune complexes at 48 hours (0.53 AU; IQR, 0.25-0.39 AU) and at 2 months (0.09 AU; IQR, 0.03-0.17 AU) and may have functioned as specific stimuli for the infant mucosal immune response.Conclusions and relevanceIn this cohort study, SARS-CoV-2 spike-specific IgA antibodies were detected in infant saliva, which may partly explain why newborns are resistant to SARS-CoV-2 infection. Mothers infected in the peripartum period appear to not only passively protect the newborn via breastmilk secretory IgA but also actively stimulate and train the neonatal immune system via breastmilk immune complexes.

Dataset Information

Vertical transmission and clinical outcome of the neonates born to SARS-CoV-2-positive mothers: a tertiary care hospital-based observational study.

Background

Objective

Design

Setting

Participants

Main outcome measures

Results

Conclusion

Publications

Vertical transmission and clinical outcome of the neonates born to SARS-CoV-2-positive mothers: a tertiary care hospital-based observational study.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets