COVID-19 Guidance Update

Dear Members of the Harvard Chan School Community:

We hope you’ve had a chance to read yesterday’s message from the University reinforcing the latest COVID-19 guidance. With high vaccination and booster rates and continued testing, Harvard and our School community continue to see a low rate of infections.

Here are some important things to remember:


  • Harvard requires all community members, except those with an approved exemption, to be up to date on vaccination, including boosters.

Masks Welcome

  • Although it is now optional to wear a mask, we welcome continued mask-wearing on campus.
  • Three-layer “procedure masks” continue to be available at the FXB, Kresge, 90 Smith, and Landmark 3 entrances. KN-95 masks are available upon request from security staff at those locations.
  • People have various personal situations and different risk tolerances. Nobody should be made to feel uncomfortable, unwelcome, or marginalized because they choose to wear or not wear a mask.
  • If you are not vaccinated, you must wear a mask.


  • Members of the Harvard community with any on-campus presence must continue to test on a weekly basis through Color, and are welcome to test more frequently if desired.
  • If you are not vaccinated, you are required to test twice per week through Color.


  • As part of the School’s multi-layered approach to preventing transmission, our building ventilation and air filtration standards are above and beyond those recommended by the University and air quality is continuously monitored. 

COVID-19 Workplace Policies

  • The University’s temporary Coronavirus Workplace Policies, which include Emergency Excused Absence, the flexible use of sick time, and Dependent Well Care, will end effective Friday, April 1. If you have any questions, please contact HR.

We hope you’re all having a good start to spring and thanks as always for your patience and flexibility.


Katie and Jane

Katherine A. Hope
Executive Dean for Administration

Jane J. Kim
Dean for Academic Affairs
K.T. Li Professor of Health Economics