While cases of coronavirus are on the decline in India, the flu season is here. The symptoms of common flu are very similar to those of Covid-19 - cough, fever, and diarrhoea. With many doctors recommending the flu vaccine be administered annually due to change in the circulating strains of viruses, certain medical bodies like the Indian Academy of Paediatrics, and even states like Maharashtra have recommended flu vaccines for children below five to help them develop immunity against Covid-19. But some doctors have also recommended the same for adults. Are flu shots effective against Covid-19? Also, how different are flu vaccines from Covid jabs? FYI reached out to experts to understand more.