The Centers for Disease Control and Prevention has recommended Moderna and Johnson & Johnson booster shots for millions of Americans. The agency also suggested that mixing and matching shots is safe and doable. (The New York Times)

The U.S. is planning to monitor the Delta subvariant known as Delta-plus, or AY.4.2. Though it has been identified in the country, there hasn’t been an uptick in Delta-plus cases yet, CDC Director Rochelle Walensky said. (CNBC Weekly)

Athira Pharma CEO Leen Kawas has resigned after an investigation discovered she altered images in research that helped establish the company. Mark Litton, who has served as Athira COO since 2019, will step into the CEO role. (Endpoints News)

Illumina plans to launch Grail’s cancer detection test, Galleri, in Asia and Africa, the company announced. Illumina hopes its infrastructure will aid in boosting access to the test. (STAT)

Southwest Airlines no longer plans on firing unvaccinated workers, the company’s CEO said. The company will, however, continue to work “in good faith to meet the requirements of the executive order.” (Business Insider)