Want to be a contact tracer? Johns Hopkins is offering a free course

A five-hour online course created by Johns Hopkins Bloomberg School of Public Health could become the backbone of the country's contact tracer training program. The class, which rolled out Monday, offers online instruction to anyone who wants to learn the basics of contact tracing: the process of identifying and isolating people who have been infected with COVID-19 and their close contacts.

Some doctors moving away from ventilators for virus patients

Health officials around the world are pushing to get more ventilators to treat coronavirus patients, but some doctors actually are moving away from using the machines. Generally speaking, 40% to 50% of patients with severe respiratory distress die while on ventilators, experts say. But 80% or more of coronavirus patients placed on the machines in New York City have died, state and city officials say.