Research has shown a strong link between gut microbiota and allergic diseases, which impacts microbial diversity and specific strains.
Lockdowns enforced during the Covid-19 pandemic had a notable effect on the gut microbiome development in babies born during this time. A recent study found that those born during lockdowns also exhibited lower-than-expected rates of allergic conditions, including food allergies. The study found differences in microbiome development of infants born before and during the pandemic.