Pfizer Inc. is an American multinational pharmaceutical corporation. Pfizer is one of the world's largest pharmaceutical companies, and was ranked 64th on the 2020 Fortune 500 list of the largest U.S. corporations by total revenue, at $51.75 billion. Read More
Those with systemic lupus erythematosus, or SLE, who received a "booster" dose of the SARS-CoV-2 vaccine after receiving the full dosage are about half as likely to experience a subsequent "breakthrough" COVID-19 infection, according to a recent stud ...