A third dose of the Pfizer/BioNTech COVID-19 vaccine can "strongly" boost protection against the delta variant -- beyond the protection afforded by the standard two doses, suggests new data released ...

Pfizer Inc.'s (NYSE:PFE) COVID-19 vaccine for children under five may lose U.S. Food and Drug Administration authorization this fall, raising the possibility of supply shortages and prompting Moderna ...

Former FDA adviser said he had meetings with feds on natural immunity as comparable to vaccination, but that they dismissed ...

President Donald Trump has demanded that pharmaceutical companies such as Pfizer release what he described as hidden COVID-19 vaccine data, raising questions about the legacy of Operation Warp Speed, ...