By Dr. Liji Thomas, MD Reviewed by Lauren Hardaker Mar 5 2026 Even after the virus disappears, some people continue to experience altered taste. New research suggests that subtle molecular changes in taste receptor cells, not visible damage, may explain why sweet, umami, and bitter flavors remain disrupted long after COVID-19 infection. Study: Taste dysfunction in long COVID . Image credit: DimaBerlin/Shutterstock.com Some people with long COVID-19 report persistent taste alterations, but the

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