Impact of Gestational COVID-19 on Neonatal Outcomes: Is Vertical Infection Possible?
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Vigil-Vázquez Sara, Carrasco-García Itziar, Hernanz-Lobo Alicia, Manzanares Ángela, Pérez-Pérez Alba, Toledano-Revenga Javier, Muñoz-Chapuli Mar, Mesones-Guerra Lara, Martínez-Lozano Andrea, Pérez-Seoane Beatriz, Márquez-Isidro Elena, Sanz-Asín Olga, Caro-Chinchilla Gloria, Sardá-Sánchez Marta, Solaz-García Álvaro, López-Carnero Juan, Pareja-León Marta, Riaza-Gómez Mónica, Ortiz-Barquero María Concepción, León-Luis Juan Antonio, Fernández-Aceñero María Jesús, Muñoz-Fernández María Ángeles, Catalán-Alonso Pilar, Muñoz-García Patricia, Sánchez-Luna Manuel, Navarro-Gómez María Luisa, GESNEO-COVID cohort Working Group
Аннотация
METHODS: This was a prospective, observational and multicentric study involving 13 Spanish hospitals included in the GEStational and NEOnatal-COVID cohort. Pregnant women with microbiologically confirmed SARS-CoV-2 infection during any trimester of pregnancy or delivery and their newborns were included from March to November 2020. Demographic, clinical and microbiological data were also obtained. Viral loads were analyzed in different maternal and newborn biological samples (placenta, breast milk and maternal blood; urine, meconium and newborn blood).
RESULTS: A total of 177 newborns exposed to SARS-CoV-2 were included. Newborns were tested by reverse transcriptase-polymerase chain reaction using nasopharyngeal swabs within the first 24-48 hours of life and at 14 days of life. In total 5.1% were considered to have SARS-CoV-2 infection in the neonatal period, with 1.7% considered intrauterine and 3.4% intrapartum or early postnatal transmission cases. There were no differences in the demographic and clinical characteristics of the pregnant women and their newborns' susceptibility to infections in their perinatal history or background.
CONCLUSIONS: Intrauterine transmission of SARS-CoV-2 is possible, although rare, with early postnatal transmission occurring more frequently. Most infected newborns remained asymptomatic or had mild symptoms that evolved well during follow-up. We did not find any maternal characteristics predisposing infants to neonatal infection. All infected newborn mothers had acute infection at delivery.Although there was no presence of SARS-CoV2 in cord blood or breast milk samples, SARS-CoV-2 viral load was detected in urine and meconium samples from infected newborns.