People queue to be vaccinated at the Alive Corn Exchange in King's Lynn - Credit: Chris Bishop A new study has found two doses of the main coronavirus vaccines are effective against the Indian variant of Covid-19. The study by Public Health England (PHE) has found the Pfizer coronavirus vaccine is 88pc effective against the Indian variant after two doses. Both the Pfizer and AstraZeneca jabs were found to be almost as effective against symptomatic disease from the B1617.2 strain as they are against the Kent variant after the second dose. But they were only 33pc effective three weeks after the first dose.