outbreak

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.

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.

Zika virus explained: how it spreads, what it does in adults and in pregnancy, the 2015-2016 outbreak, and why no vaccine is licensed yet, per CDC and WHO.

Mpox explained: how monkeypox virus infects cells, spreads, and caused two global emergencies in 2022 and 2024, plus vaccine and treatment evidence.

Ebola virus explained: how orthoebolaviruses infect cells, why fatality averages 50%, how outbreaks spread, and what vaccines and antibodies cover.