A mucosal DNA vaccine was proved effective in stopping Covid-19 in its tracks, a small-scale study conducted in mice has found. An international research team has demonstrated that its mucosal DNA vaccine is capable of ensuring the total survival of a group of mice infected with a version of the virus adapted to this species, whereas the latter kills 100 per cent of
Gay and bisexual men may soon be allowed to donate blood without a fixed period of sexual abstinence, the federal Food and Drug Administration announced late last month in response to a Wall Street Journal report about the policy change.