US approves Covid boosters for those with weakened immune systems
The United States on Thursday authorised an extra dose of Covid vaccine for people with weakened immune systems, as the country struggles to thwart the Delta variant. Emergency use authorization for a third injection of Pfizer-BioNTech and Moderna vaccines was granted by the US Food and Drug Administration (FDA) regulator. "The country has entered yet another wave of the Covid-19 pandemic, and the FDA is especially cognizant that immunocompromised people […]
