The emergency meeting comes after federal health authorities said they were studying rare blood clots in six vaccine recipients and injections of the vaccine were halted across the country.The emergency meeting comes after federal health authorities said they were studying rare blood clots in six vaccine recipients and injections of the vaccine were halted across the country.internal-essential, Blood Clots, Vaccination and Immunization, Coronavirus (2019-nCoV), Advisory Committee on Immunization Practices, United StatesRead More