Very Severe Long COVID Linked to Differences in Lung and Mouth Microbiomes

A study of over 700 people published in the European Respiratory Journal reveals that individuals with long COVID have distinct bacterial differences in their mouths and lungs compared to those without the condition. Researchers found that these microbiome variations are directly associated with respiratory symptoms, as well as cognitive and digestive problems commonly experienced by long COVID patients. These findings provide new insights into the biological mechanisms underlying long COVID's complex symptom profile. Understanding these microbial changes may help guide future treatment approaches for this debilitating post-viral condition.