Spanish study finds AstraZeneca Covid-19 vaccine followed by Pfizer dose is safe and effective
NEW DELHI: A Spanish study on mixing COVID-19 vaccines has found that giving a dose of Pfizer's (PFE.N) drug to...
Pfizer dose
NEW DELHI: A Spanish study on mixing COVID-19 vaccines has found that giving a dose of Pfizer's (PFE.N) drug to...
