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A Program at the Harvard T.H. Chan School of Public Health

Harvard T.H. Chan School of Public Health

We have long known that buildings play a critical role in infectious disease transmission. We’re making sure they’re part of the coronavirus conversation, too.

We have established that healthy building environments play an important role in combatting the spread of infectious disease, including coronavirus (SARS-CoV-2). Read about the latest news, research, reports, and tools we’ve developed to fight COVID-19 transmission and ensure that healthy buildings can be used to control the spread both now and as we move forward

New: COVID-19 Risk Calculator

We created a tool to help you better understand how to reduce the risk of COVID-19 transmission in indoor environments using affordable control strategies. Learn how mask wearing, social distancing, personal hygiene, portable air cleaners, ventilation, and activity can contribute to the likelihood of COVID-19 exposure. Creation of this tool was based off of modeling of multiple super-spreader events in some of our latest research (Azimi et al., 2021).

Engagement with The Lancet COVID-19 Commission


Dr. Joseph Allen is chair of the Lancet COVID-19 Commission’s Task Force for Safe Work, Safe School, and Safe Travel. Click the photo to visit their site for detailed, scientific guidance on the recovery and safety of these necessary indoor spaces.

Recent COVID-19 News and Op-Eds

Relevant COVID-19 Research

May 13, 2021
A paradigm shift to combat indoor respiratory infection
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Apr 16, 2021
Indoor Air Changes and Potential Implications for SARS-CoV-2 Transmission
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Feb 23, 2021
Mechanistic transmission modeling of COVID-19 on the Diamond Princess cruise ship demonstrates the importance of aerosol transmission
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Jan 1, 2021
COVID-19 TOOLS: Calculators for the Classroom
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Nov 16, 2020
Updates to the Risk Reduction Strategies For Reopening Schools Report
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