Safety experts discuss the Oxford-AstraZeneca Covid-19 vaccine as the list of countries temporarily halting its rollout grows

The World Health Organization’s vaccine safety experts were due to meet Tuesday to discuss the Oxford-AstraZeneca Covid-19 vaccine, as the list of countries temporarily halting its rollout over blood clot concerns continued to grow.The World Health Organization’s vaccine safety experts were due to meet Tuesday to discuss the Oxford-AstraZeneca Covid-19 vaccine, as the list of countries temporarily halting its rollout over blood clot concerns continued to grow.