Dr. Gary Kaplan explains how a short-term viral infection can become a long-term chronic condition for some. #longcovid #covid19 #covid #brainfog #chronicillness #postviralsyndrome CoronavirusCOVID-19COVID-19 immune systemCOVID19immune systemIMMUNITYVITAMINRelated Posts The Hidden Start of Autoimmune Disease March 24, 2026 LIVE: Press Conference on Global Health Issues with Dr Tedros March 18, 2026 Vitamin D’s Weird Long COVID Clue March 18, 2026 Is It Possible to Prevent Long COVID? March 16, 2026 Long COVID Explained: Symptoms, Causes, and What We Know Now | Dr. Gary Kaplan March 16, 2026 Nasal vaccines for stopping the transmission of COVID-19 March 15, 2026