Infectious Disease

A black patient receives a vaccine

Vaccine Hesitancy and COVID-19

Q&A with Abram Wagner and Trina R. Shanks

With several vaccines approved and more people receiving them, our eyes now turn to vaccine acceptance. Vaccines give us the ability to prevent severe disease and reduce transmission. What questions do people have about the vaccines and the systems administering them? Read more

crowd of people in India

India's Coronavirus Puzzle: Why Case Numbers Are Plummeting

Bhramar Mukherjee quoted in the Washington Post

Epidemiologists in India say that there is only one likely explanation for the decrease in new cases: The virus is finding it harder to spread because a significant proportion of the population, at least in cities, already has been infected. The decline is not related to a lack of opportunities for transmission. Read more

coronavirus testing site

How Coronavirus Variants May Drive Reinfection and Shape Vaccination Efforts

Q&A with Aubree Gordon

Vaccine rollout in the United States has been undeniably slow. And while we wait, worrisome new coronavirus variants are emerging, heightening the urgency to control the pandemic. Some variants, including ones first identified in Brazil, South Africa and the United Kingdom, have mutations that help the coronavirus evade parts of the immune system, raising the specter that some people might face a second round of COVID-19. Read more