Why Babies Are More Resilient Against Covid-19

Understanding infants’ peculiar response to the virus may be a key to finding new treatments

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A real-time resource for Covid-19 news, advice, and commentary.

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“It’s notable that a large percentage of them had fever as maybe even the only symptom,” says lead author Leena B. Mithal, MD, a pediatric infectious diseases expert from Lurie Children’s and assistant professor at Northwestern University Feinberg School of Medicine. “None of the babies required any oxygen or any respiratory support at all,” she adds. “This is a small series, but what we saw during that period has remained true moving forward in the cases of previously healthy infants.”

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“Over time, it seems that babies who went home with moms infected with SARS-CoV-2 at the time of delivery did not do significantly differently or have worse outcomes than babies who were separated from their mothers in the initial postpartum period,” says Mithal. “This speaks to the fact that, of these babies at risk of exposure and infection in the household, only a small subset may have symptomatic infection and further problems.”

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