Actor Akshay tests positive as India virus surge worsens
Millions face Easter under virus curbs as cases surge
Amid virus surge, WHO says Europe vaccine rollout 'unacceptably slow'
Australia misses vaccine target amid slow rollout
COVID likely spread from bats, not from lab leak, frozen food
Philippines locks down economic hub to fight virus surge
EU races to catch up on vaccines as Brazil deaths cross 300,000
India's daily virus cases cross 50,000
Antibody test baseline to identify vaccine response