Categories twitter twitter-es twitter-pt RT @WHO: WHO today validated the Sinovac-CoronaVac #COVID19 vaccine for emergency use, giving countries, funders, procuring agencies & comm…admin - 18:59, 2 de junio de 2021291 0 RT @WHO: WHO today validated the Sinovac-CoronaVac #COVID19 vaccine for emergency use, giving countries, funders, procuring agencies & comm… 0