US says unlikely to use China, Russia virus vaccine as race heats up

US says unlikely to use China, Russia virus vaccine as race heats up August 1, 2020 0 2 WASHINGTON: Americaࢀ™s top infectious diseases official has raised concerns over the safety of Covid-19 vaccines being developed by China and Russia as the world scrambles for answers to a pandemic the WHO warned will be felt for decades.Six months after the World Health Organization declared a global emergency, the novel coronavirus has killed at least 679,000 people and infected at least 17.9 million, according to an AFP tally.As countries across Western Europe announced new lockdowns and reported historic economic slumps, the UN…