Healthy volunteers above 18 years who have received 2 doses of ChAdOx1 nCoV-19 vaccine <br/ > Able and willing to comply with study requirements <br/ > Willing to refrain from blood donation during the study period <br/ > giving consent <br/ >

Healthy volunteers above 18 years who have received 2 doses of ChAdOx1 nCoV-19 vaccine <br/ > Able and willing to comply with study requirements <br/ > Willing to refrain from blood donation during the study period <br/ > giving consent <br/ >