public-health

Ask which animal kills the most people and the mind jumps to sharks, lions, or crocodiles. The real answer is something you've swatted without a second thought: the mosquito, which killed an estimated 597,000 to 610,000 people in 2023 and 2024 alone — more than every large predator combined, many times over. The deadliest animals on Earth aren't the biggest or fiercest. They're the ones that carry disease, and the ranking overturns almost everything our instincts tell us.

How the US Public Health Service ran a 40-year experiment withholding treatment from 399 Black men, what Peter Buxtun exposed, and why it still shapes medical trust today.

Louis Pasteur invented pasteurization in 1864 to save wine. It took another 50 years to reach milk—and the delay cost hundreds of thousands of children their lives.

Vaccination began with cowpox, a boy named James Phipps, and Edward Jenner in 1796. Discover how the science of immunization works and why it remains our most powerful public health tool.

Edward Jenner invented the smallpox vaccine in 1796 but was elected to the Royal Society for studying cuckoos. His verified biography, ethics, and medical legacy.

From variolation and Jenner's cowpox to Pasteur, polio, smallpox eradication, and mRNA — the full history of vaccines and modern frontiers.

Where H5N1 stands in October 2026: 72 U.S. human cases, dairy cattle spread, what would signal pandemic risk, and what CDC says about milk and vaccines.

Norovirus vs rotavirus: how the two stomach bugs differ in biology, who they hit, how they spread, vaccines, and when dehydration needs a doctor.

Mpox clade I explained: how clade Ib emerged in the DRC, why WHO declared a 2024 emergency, what data show on severity and vaccines, and why it ended in 2025.

West Nile virus: mosquito transmission, bird reservoirs, neuroinvasive disease, the 1999 NYC outbreak, and why no human vaccine exists yet.