The U.S. is expected to purchase hundreds of millions of additional doses of the Pfizer COVID-19 vaccine to donate to other countries. The Biden administration has so far bought 500 million doses to be given to COVAX. (The Washington Post)

AstraZeneca is exploring combination therapies with its drug Imfinzi for treating lung cancer. In a Phase II trial, Imfinzi along with two immunotherapies appeared to be more effective than Imfinzi alone in treating patients with stage III non-small cell lung cancer. (Endpoints News)

Italy will mandate COVID-19 health passes that prove full vaccination for all private and public workers. The plan represents one of the strictest vaccine mandates enacted by a Western country. (The Wall Street Journal)

The U.K. government has begun tracking clinical trial reporting after a 2018 analysis found many trial sponsors were not adequately reporting their results. The new tracking system will monitor all interventional trials that involve U.K. patients. (STAT)

Hospitals overwhelmed by COVID-19 patients are postponing cancer care and other types of surgeries and treatments. Doctors are reporting longer wait times for patients who need open-heart and lung surgeries. (Kaiser Health News)