Repeat Coronavirus Vaccination Needed After 6 Months, Russian Health Minister Says

Russians who were vaccinated against the coronavirus over six months ago should revaccinate themselves for extra protection as the country grapples with the third wave of the pandemic, Health Minister Mikhail Murashko said Monday. Moscow, the epicenter of the pandemic in Russia, reported its highest-ever number of Covid-19 cases in a single day this weekend as the fast-spreading Delta variant first detected in India accounts for 90% of all infections in the capital. The variant is more resistant to Covid-19 antibodies which gradually decline after one is vaccinated or recovers from the virus.