Brazil’s yellow fever outbreak, with 1,900+ cases and at least 560 deaths since 2016, caught the country off guard and under-vaccinated—especially in rural areas. Now, officials are trying to play catch-up during a global vaccine shortage so severe that in February, “a gang…

Vaccines are a touchy subject. For some, vaccine mandates symbolize government overreach and prompt anxiety and avoidance, according to Heidi Larson. Add in cultural and religious complexities, and the potential of vaccine programs is limited. Amazing progress has occurred…

Multiple childhood vaccinations do not have the knock-on effects many anti-vaxxers fear.

Since January Nigeria has seen over 1000 suspected cases of Lassa fever and about 90 deaths. Researchers are scrambling to understand this year's unusually high toll.Hard-to-diagnose Lassa often causes only mild symptoms, but is deadly. And like many diseases that present…

Growing access to postexposure prophylaxis (PEP) in Vietnam has seen rabies cases decline 82% from 1994-2016—but some pregnant and breastfeeding women still avoid it, with deadly consequences.

Two new studies bring critical insight to curbing cholera in sub-Saharan Africa.

In 2016, India claimed to launch national cancer screening campaigns. A year later, the country has yet to provide preventive care for women and girls.70,000 Indian women die of cervical cancer every year, accounting for 27% of cervical cancer deaths worldwide. A scarcity…

Researchers are using the principles of biological vaccines to administer small doses of fake news in the hope of building immunity against the tactics of bogus content-makers.The online game—now available to play—uses the psychological theory of inoculation to build up…

Jaime Sepulveda lives global health. A veteran of senior health posts in Mexico’s government and a leadership position at the Gates Foundation, Sepulveda designed Mexico’s universal vaccination program and founded the country’s National AIDS Council. (An HIV/AIDS clinic in…

A YouTube video challenging the benefits of the human papillomavirus (HPV) vaccine, by filmmaker Joan Shenton, demonstrates why film has become a choice tool for vaccine critics.