Experts at the World Health Organization (WHO) say the news Monday of another COVID-19 vaccine candidate is encouraging but more information is needed and, as new virus cases surge around the world, it is no time to be complacent.
Experts at the World Health Organization (WHO) say the news Monday of another COVID-19 vaccine candidate is encouraging but more information is needed and, as new virus cases surge around the world, it is no time to be complacent.