India on Tuesday reported the first six cases of a mutant strain of coronavirus, which is claimed to be 70 percent more infectious and was first reported in the United Kingdom, the government said today. So the big question is, how effective are the anti-COVID-19 vaccines, especially as the virus is changing itself? GoNews’s Sidharth Pandey speaks to London based Dr. Sreedharan at the Kings College Hospital in London who is closely tracking the virus