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Vaccines are the silent heroes of public health, protecting people every day from disease. But how do they actually work?

Days after Uganda declared a new Ebola outbreak, a public health team launched the trial of a Sudan virus vaccine candidate, according to IAVI’s Swati Gupta.

A series from the Public Health On Call podcast explores the science, safety, and systems behind vaccines.

Based on the latest projections from the RSV Scenario Modeling Hub, between July 2024 and June 2025, interventions are expected to avert thousands of cases of severe disease that would require hospitalization.

Both oral and injected poliovirus vaccines are safe and effective at protecting against polio.

As we head into 2025—a year certain to bring great change—we reflect on 2024’s public health headlines.

Will Garden House Compound, a sprawling maze of makeshift shelters outside Lusaka, Zambia, become a hotspot once again for another deadly cholera outbreak during the upcoming rainy season? 

The cholera outbreak that swept Zambia in early 2024 highlighted the urgent need for improved water and sanitation infrastructure, especially in urban areas. But the crisis spotlighted another critical factor, too: the stigma surrounding the disease.

The weeklong trip, organized by the university's Gupta-Klinsky India Institute, included announcements about Hopkins support for work on pediatric tuberculosis, and career advancement for women in STEMM fields.

Almost everyone will get HPV within their lifetime. While many types of HPV go away on their own, others can cause cancer. Fortunately, vaccines can prevent these infections.

What’s behind the resurgence of diseases we know how to prevent, and what new vaccines are on the horizon?

How Rwanda is working to contain its first-ever outbreak of the deadly virus—including by testing a new vaccine.

RSV season is upon us—but we have the tools available to protect the people most vulnerable to it.

The updated COVID vaccine provides safe, effective protection against current variants for everyone 6 months and older.

Hot weather, human behavior patterns, and an easily mutating virus create the perfect recipe for COVID to peak in the summer.