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Vaccines Headlines

Explore the latest public health research and insights about vaccines. 

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?

A stack of dominos is key from falling over by a vial of bivalent COVID-19 booster.

Bivalent Covid-19 Booster Updates

Combining proteins from two SARS-CoV-2 variants, bivalent booster shots protect against the currently circulating BA.5 subvariant—and may afford longer-lasting immunity.

Vaccines Faculty

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

Anna Durbin
International Health

Anna Durbin, MD, studies experimental vaccines for SARS-CoV-2, dengue, West Nile, Zika, malaria, and more in human clinical trials and in controlled human infection studies.

Daniel Salmon
International Health

Daniel Salmon, PhD ’03, MPH, is a vaccinologist who conducts epidemiological and behavioral studies to assess the safety of vaccines and improve vaccine decision-making.