The gut microbiome dominates the headlines, but it's not the only collection of tiny organisms that live inside you and affect your health. The oral microbiome—which populates the mouth and connects with the sinuses, larynx, trachea and lungs—harbors more than 700 species of bacteria.
You inhale small amounts of saliva throughout your day.
This isn't necessarily bad. While we don't fully understand the impact on health, we do know the bacteria that enter your lungs impact your immune system, sometimes detrimentally but sometimes beneficially. This is still an active area of research.We wanted to answer two main questions. The first of those was whether variations in the oral microbiome affected susceptibility to getting COVID.
The second main question we wanted to answer was how SARS-CoV-2 affected the oral microbiome and whether greater changes predicted bigger changes down the road with problems like long COVID.We tapped materials from the Rutgers Corona Cohort. Researchers followed 831 health care workers and otherfor six months during the early days of the pandemic.
types—offered protection against COVID. We also saw very few changes after COVID for those who had mild to moderate cases. There were, however, significant reductions in microbiome diversity among people with severe symptoms soon after infection.
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