Moderna Covid vaccine efficacy falls slightly to 90% in US trial
Covid-19: Moderna and Novavax vaccines to be tested in mixing vaccines trial
14 April 2021Clot questions over AstraZeneca and J&J vaccine
14 April 2021Moderna Covid vaccine efficacy falls slightly to 90% in US trial
US biotech company Moderna announced COVID vaccine is 90 percent effective against all forms of the disease and 95 percent effective against severe disease.
