Every week we read what the surveillance feeds, the health departments and the outbreak reporting said, and write it down in a page. This is the archive: one entry per week since May 2026, newest first. Use the week picker to jump to a date, or type a disease or a place into the filter to find the weeks it came up.
- September 20 to 27, 2026: Measles and Dengue outbreaks intensify globally, alongside new HIV cases and ongoing Ebola spread. Health system disruptions also noted.
- September 13 to 20, 2026: Measles outbreaks surge, claiming lives in Pennsylvania and Bangladesh. DRC Ebola cases exceed 7,000 as critical malaria alerts emerge.
- September 6 to 13, 2026: Measles outbreak in Bangladesh nears 1,000 child deaths amid global alerts on Ebola spread and AI bioweapon development prevention.
- August 30 to September 6, 2026: Ebola cases surge in Congo; US and Nigeria face severe measles outbreaks. Delhi sees H1N1 spike, and a WHO medical warehouse in Ukraine is damaged.
- August 23 to 30, 2026: Avian flu spreads to seals, Ebola declared 'out of control', and a deadly malaria outbreak hits Germany. A rare brain infection also confirmed in the US.
- August 16 to 23, 2026: Ebola in DRC intensifies with over 5,000 cases and rapid spread. Measles deaths continue to rise as new critical alerts are issued for multiple diseases.
- August 9 to 16, 2026: Ebola outbreaks intensify in Congo, while measles cases surge in Bangladesh and the US. Unidentified diseases also spark concern.
- August 2 to 9, 2026: Ebola outbreak in DRC escalates past 4,000 cases, prompting increased international aid and a stepped-up WHO response. Australia also faces a growing bird flu crisis.
- July 26 to August 2, 2026: Ebola outbreak escalates in DRC; West Nile virus detected in Spain. Measles cases reach a 30-year high amid declining vaccinations.
- July 19 to 26, 2026: Ebola deaths in DRC surpass 1,000 amid conflict; US grapples with widespread Cyclosporiasis outbreak and rising measles cases.
- July 12 to 19, 2026: Cyclosporiasis outbreak surges in the US, linked to lettuce. DRC battles ongoing Ebola cases. Uganda nears Ebola-free status, while UK sees measles rise.
- July 5 to 12, 2026: Ebola outbreaks intensify globally and a parasitic illness surges across the U.S. this week. England reports an adult measles death.
- June 28 to July 5, 2026: Fast-moving Cyclospora outbreak hits 18 U.S. states, with Michigan as epicenter. Measles resurgence and ongoing Ebola crises also dominate global health concerns.
- June 21 to 28, 2026: Nipah virus confirmed in Kerala, India, raising high fatality concerns. France reports its first Ebola case as global surveillance remains vigilant.
- June 14 to 21, 2026: New World Screwworm re-emerges in US after decades, prompting CDC emergency activation. Australia detects first suspected mainland H5N1 avian influenza case.
- June 7 to 14, 2026: Ebola outbreak escalates in DRC, with response efforts hindered by community attacks. Heat-related deaths in Europe remain a significant concern.
- May 31 to June 7, 2026: Ebola declared PHEIC as outbreaks surge globally. Vibriosis and COVID-19 also remain top concerns.
- May 24 to 31, 2026: Ebola outbreak escalates with attack on treatment center and intensified US travel restrictions. WHO declares 'very high' national risk.
- May 17 to 24, 2026: Australia faces its largest diphtheria outbreak in decades as Ebola declared a global health emergency in DRC.
For the current picture by disease and state, see what's going around this week.