COVID-19 Headlines

Explore the latest public health research and insights about COVID-19.

3-dimensional numbers 2022, with a representation of SARS-CoV-2 in place of the number zero

COVID-19 in 2022: A Year-End Wrap-Up

As year three of the COVID-19 era draws to a close, pandemic experts weigh in on the good, the bad, and the unknown of COVID-19 in 2022—and look ahead to 2023.

Small child blowing his nose

Is the Hygiene Hypothesis True?

The hygiene hypothesis says exposure to germs helps kids develop healthy immune systems. But many viruses didn’t circulate as widely during the pandemic. Are there downsides to missed infections?

COVID-19 Faculty

Looking for prominent public health experts in the field of COVID-19? They’re here at the Bloomberg School of Public Health.

Sabra Klein

Sabra L. Klein

Professor
Molecular Microbiology and Immunology

Sabra Klein, PhD '98, studies sex differences and the effects of pregnancy on immune responses to viruses, including influenza viruses and SARS-Cov-2, and vaccines.

Related Topics
Epidemiology
Health Equity
Health Security
Infectious Diseases

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