Infectious Diseases

Having an underlying condition is one of the biggest risk factors for developing serious illness when infected with COVID-19. What is an underlying condition and what should you do if you have one?

We separate COVID-19 true from false, based on the best science and expertise available.

Countries fighting outbreaks of coronavirus should consider using the antibodies of people who have recovered from infection to treat cases and provide short-term immunity to critical health care workers, argue two infectious disease experts at JHSPH.

An analysis of publicly available data on infections from the new coronavirus, SARS-CoV-2, that causes the respiratory illness COVID-19 yielded an estimate of 5.1 days for the median disease incubation period, according to a new JHSPH-led study.

It’s one of the most contagious diseases in the world. We have a very effective vaccine that protects us—but vaccines only work if they are used. William Moss of the International Vaccine Access Center answers some basic questions.