A second dose of Johnson & Johnson’s COVID-19 vaccine administered two months after the first boosts efficacy to 94%, the company announced Tuesday. A single dose of the J&J vaccine provides 70% protection against the virus. (Reuters)

In the wake of a failed Phase IIb study for a dry eye disease candidate, Aerie Pharmaceuticals CEO Vicente Anido will step down from his position. The trial missed all of its primary endpoints. (Endpoints News)

Apple is developing technology that may assist in diagnosing depression and cognitive decline. The technology would include sensor data able to track mobility and sleep patterns. (The Wall Street Journal)

Walmart and other large employers are partnering with Grand Rounds and Doctor on Demand to launch a telemedicine program that aims to fight health disparities. The Black Community Innovation Coalition will target Black employees with an eye on improving access to healthcare. (CNBC Weekly)

Accessible Pharmacy is among the startups attempting to serve people with blindness or compromised vision by delivering medication to their homes and assisting in reading labels. “We decided to create a company where accessibility and reduction of barriers would be our primary focus,” said Accessible Pharmacy co-founder Alex Cohen. (The New York Times)