Infants who spent most of their first year in the pandemic have fewer types of bacteria in their gut than infants born earlier, according to a team of developmental psychology researchers.
The findings, published in Scientific Reports, showed that infants whose gut microbes were sampled during the pandemic had lower alpha diversity of the gut microbiome, meaning that there were fewer species of bacteria in the gut. The infants had a lower abundance of Pasteurellaceae and Haemophilus-;bacteria that live within humans and can cause various infections-;and significantly different beta diversity, which tells us how similar or dissimilar the gut microbiome for two groups may be.
The COVID-19 pandemic provides a rare natural experiment to help us better understand how the social environment shapes the infant gut microbiome, and this study contributes to a growing field of research about how changes to an infant's social environment might be associated with changes to the gut microbiome."
For their study, the authors compared stool samples of two socioeconomically and racially diverse group of 12-month-olds living in New York City that were provided before the pandemic and between March and December of 2020 .
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