my husband has been fully vaccinated both doses covishield completed a month ago since two days he had headache,cold and today loss of smell...is that covid...if yes then what to do

A. hi dear Most people who get COVID-19 are unvaccinated. However, since vaccines are not 100% effective at preventing infection, some people who are fully vaccinated will still get COVID-19. An infection of a fully vaccinated person is referred to as a “vaccine breakthrough infection.