Immunity

PREAMBLE COVID – 19 disease caused by SARS-CoV-2 Coronavirus is relatively a new disease, with fresh information being known on a dynamic basis about the natural history of the disease, especially in terms of post-recovery events. After acute COVID-19 illness, recovered patients may continue to report a wide variety of signs and symptoms including low-grade fever, fatigue, body ache, cough, sore throat, difficulty in breathing etc. all of which may relapse and remit. If the symptoms persist for 4-12 weeks post-recovery, it is called ongoing symptomatic COVID