Coronavirus update: HHS moves to boost coronavirus case tracking; AstraZeneca expands vaccine deals

The U.S. Health and Human Services department released new guidelines on Thursday to improve tracking of positive coronavirus cases in the country — with a focus on identifying inequities and directing resources as more states relax their lockdowns. Testing for COVID-19 infections in the U.S. have been a sore point, but have improved gradually as the restrictive stay-at-home orders are eased. Dr. Robert Redfield, director of the Center for…