Vaccines

students walking outside

Michigan's New Mask Rules for Fully Vaccinated People: What You Need To Know

Fully vaccinated Americans can now safely shed their masks and skip social distancing, the U.S. Centers for Disease Control and Prevention said this week, sparking a flurry of questions about how the new guidelines will be implemented at businesses, schools and other places where fully vaccinated and unvaccinated people mingle.

An older woman receiving a COVID-19 vaccine from a nurse.

COVID-19 Vaccine: Understanding Herd Immunity, Vaccine Hesitancy

Q&A with Abram L. Wagner

Since the beginning of the pandemic, herd immunity has been portrayed as the holy grail to overcome the COVID-19 pandemic. Abram Wagner, research assistant professor of Epidemiology, explains why reaching herd immunity might not be as simple as we thought, and what vaccine hesitancy and availability have to do with it.

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.