CDC / WHO Health Risk Update

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Weekly aggregated CDC and WHO advisories on outbreaks, vaccine recommendations, food safety, and travel health warnings

CDC / WHO Health Risk Update2026-07-03

Ebola trial starts as recalls widen

This week’s public health digest is led by the first Bundibugyo Ebola treatment trial and continued outbreak growth in DRC, with US-facing actions for travelers and clinicians. Household actions focus on Zapp’s/Dirty potato chips, Clover Hill Dairy cheeses, Nara Organics infant formula, measles vaccination checks, screwworm monitoring, and current CDC travel notices.

CDC / WHO Health Risk Update2026-06-26

Ebola ban extended through July 21

This week’s digest covers the June 19–26 public health window, led by the Bundibugyo Ebola outbreak surpassing 1,100 confirmed DRC cases and the US extending entry restrictions for recent presence in DRC, Uganda, or South Sudan through July 21. It also gives action-oriented updates on Listeria and botulism-related recalls, measles testing changes, ACIP disruption, New World screwworm detections, hantavirus response closure, and current travel notices.

CDC / WHO Health Risk Update2026-06-19

Public Health Digest: June 12–19, 2026

Three stories dominated the week. Nara Organics recalled all lots of its organic infant formula after 3 infant botulism hospitalizations across CA, PA, and WA — the second such recall in seven months. The Bundibugyo Ebola outbreak in DRC surged to 896 confirmed cases (CFR 26%); the US PHSA entry ban expired June 17 with no extension announced. RFK Jr. overruled a CDC quarantine physician for the first time, and the ACIP's June 24–26 meeting vanished from the CDC website. Also covered: Clover Hill Dairy Listeria now in all cheeses, screwworm in 3 Texas counties, measles at 2,104 cases, and active Salmonella/Cyclospora outbreak investigations.

CDC / WHO Health Risk Update2026-06-12

Public Health Digest: June 5–12, 2026

The Bundibugyo ebolavirus outbreak in DRC surged to 689 confirmed cases by June 11 (+82% in nine days), with the US PHSA entry ban expiring June 17 and no extension yet announced — a critical deadline coinciding with the World Cup's opening week. Six FDA food and product recalls were issued, including Clover Hill Dairy Listeria expanding to all cheeses (9 sick, 1 dead) and Beekeeper's Naturals nasal spray recalled for Aspergillus contamination. US measles cases reached 2,073 — on pace to exceed the 2025 post-elimination record.

CDC / WHO Health Risk Update2026-06-05

Public Health Digest: May 29 – June 5, 2026

This week's dominant story is the Ebola Bundibugyo PHEIC accelerating sharply — DRC confirmed cases climbed from 125 to 452 in one week, with a new CDC model putting a 65% probability of exceeding 20,000 cases if isolation stays at current levels. The article also covers VRBPAC's unanimous vote on the XFG fall COVID vaccine strain, the hantavirus cruise ship quarantine winding down, a deadly multi-year Listeria outbreak traced to Clover Hill Dairy requesón, a reopened Salmonella moringa probe (119 cases, 36 states), the Gas-X nationwide coolant-contamination recall, and new CDC travel notices for French Guiana (chikungunya) and Mayotte (malaria).

CDC / WHO Health Risk Update2026-05-29

Ebola Escalates, Salmonella Wave Continues: Public Health Digest, May 22–29

This digest covers May 22–29, 2026. The lead story is the Bundibugyo Ebola PHEIC accelerating — 49 new confirmed cases in 8 days, Uganda's border closure with DRC, US entry screening expanding from Dulles alone to four airports (IAD, ATL, IAH, JFK) with LPRs newly covered. Also covered: WHO DON604 updating the MV Hondius cruise-ship Andes virus outbreak to 13 cases (Rt 0.7; no US cases); US Clade I mpox at 23 cases; two MMWR reports (West Texas measles hospitalizations — 1 in 5 admitted; largest-ever Amanita mushroom poisoning cluster in California); FDA's VRBPAC meeting for 2026–2027 COVID-19 vaccine formula; and nine food and product safety recalls — including a Salmonella moringa capsule cluster spanning 119 cases and 36 states, and the CDI powdered milk cascade reaching its 7th downstream brand.

CDC / WHO Health Risk Update2026-05-22

Ebola PHEIC, Hantavirus Update, and Five Food Recalls: Public Health Advisory Digest, May 17–22

This digest covers May 17–22, 2026. The lead story is WHO's unprecedented PHEIC declaration for the Bundibugyo Ebola outbreak in DRC and Uganda — including a US 30-day entry ban, a US aid worker infection evacuated to Germany, and Dulles as the sole US entry point. Also covered: hantavirus case count rising to 12, CDC's first malaria investigation guidance since 2006, five new FDA food recalls (Salmonella, allergens, Listeria), and a Class I ventilator recall for healthcare facilities.

CDC / WHO Health Risk Update2026-05-17

Hantavirus, Ebola, and a Salmonella Wave: Public Health Advisory Digest, May 10–17

This week's digest covers the Andes virus hantavirus cluster on MV Hondius (41 Americans monitored), WHO's Ebola PHEIC for DRC/Uganda, a large CDI Salmonella powdered milk recall cascade, New York's legislative break from federal vaccine guidance, and updated RSV and COVID booster recommendations for travelers and families.

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