Study Links Long COVID to Altered Microbiome in Mouth and Lungs

Research published in the European Respiratory Journal indicates that individuals with long COVID exhibit distinct variations in their oral and lung microbiomes.

The study examined 771 patients treated across 38 UK hospitals and found that very severe cases presented marked microbial differences linked to respiratory and cognitive symptoms.

Researchers noted an over-abundance of lactic acid-producing bacteria associated with blood inflammation signs and broader health effects like brain fog and gut issues.