The U.S. government has set a benchmark for future COVID-19 vaccine prices with the deal for Pfizer and BioNTech’s experimental vaccine. The deal secured enough vaccines to inoculate 50 million Americans for about $40 a person, or about the cost of annual flu shots. (Reuters)

Wearable health monitoring devices like Fitbits are being studied to identify COVID-19 symptoms. Changes in heart rate, respiratory rate and other biometrics measured by the devices may flag the early stages of the infection. (Reuters)

Health startup Hims & Hers has expanded further into mental health care. The new service connects people with doctors who can prescribe and manage common medications for depression and anxiety, as the company positions itself as a telemedicine provider. (STAT)

U.S. coronavirus cases have passed 4 million. It took only 16 days for case counts to go from 3 million to 4 million, according to a Reuters tally, as some states continue to see huge daily spikes in new cases. (Reuters)

The National Institute of Health will soon launch studies to test new approaches to treating COVID-19. The clinical trials will look for more ways to treat patients with COVID-19 as drugs continue to move through the development process. (STAT)