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Why Babies Are More Resilient Against Covid-19
Understanding infants’ peculiar response to the virus may be a key to finding new treatments
Babies make up a tiny percentage of all diagnosed cases of Covid-19. In the United States, where 1.2% of the population are children under one year of age, they account for only 0.27% of the positive tests, according to a Centers for Disease Control and Prevention (CDC) report. It’s not clear if babies are getting infected at a lower rate compared with other age groups or if they are just not being tested as much. But what is evident is that the ones who are diagnosed have, in general, significantly milder illness compared with adults.
The reason behind babies’ apparent resilience to Covid-19 is being intensely investigated by scientists. Getting to the bottom of that mystery could inspire the development of new treatments, potentially benefiting people of all ages.
What’s known so far about the outcomes of babies infected with SARS-CoV-2 comes from reports such as the one published in this month’s edition of The Journal of Pediatrics by physicians at the Ann & Robert H. Lurie Children’s Hospital of Chicago. The study, which included 18 previously healthy children under 90 days old who tested positive for Covid-19, showed that none had severe symptoms. Nasal…
