Michigan reports 6,065 cyclosporiasis cases in an unusually large summer outbreak
An interim report in NEJM Evidence links the parasitic outbreak to iceberg lettuce and one restaurant chain, with cases spread across most of the state.
Meningococcal cases tracked Umrah as pilgrim vaccination compliance fell to 54%
WHO recorded serogroup W135 disease in pilgrims returning from Saudi Arabia in early 2025. A modelling study estimates high vaccination coverage would cut expected cases by more than 80%.
A permanent global mpox vaccine stockpile launches after 2022's access failures
Gavi is funding a standing mpox vaccine stockpile, coordinated by the same group that manages emergency supplies for cholera, yellow fever and Ebola, to avoid repeating the 2022 access gap.
DRC's Ebola outbreak reaches 5,794 cases as Uganda and France clear their monitoring
WHO's latest update records 1,129 more confirmed cases in twelve days and a case fatality ratio of 48.1%. Transmission is now confined to Congo, across 60 health zones in six provinces.
Four in ten hospitalised mpox patients developed eye disease, a Congolese cohort finds
In South Kivu, ophthalmologists examined 310 patients with confirmed clade Ib mpox at four time points. Periorbital lesions and severe acute malnutrition tripled the risk of ocular involvement.
In Iraq's Thi Qar province, home slaughter and tick bites drove CCHF infection
A study of 806 suspected cases found nearly a quarter were confirmed Crimean-Congo haemorrhagic fever, all the main risk factors tied to livestock handling — as warming expands the range of the ticks that carry it.
547 diphtheria cases in one Yemeni governorate, 92% of them unvaccinated
A registry analysis of Abyan Governorate from 2020 to 2024 puts numbers on a vaccine-preventable disease that returned as immunisation coverage fell — with the heaviest toll among children aged 5 to 9.
DRC's Ebola outbreak passes 100 days as death toll tops 2,500 and WHO panel reconvenes
The Bundibugyo virus epidemic is now the largest Ebola outbreak in Congo's history. WHO's emergency committee met again this week; MSF says the response still isn't reaching people fast enough.
The US is likely to lose its measles elimination status this fall. What that means.
A ruling comes in November. The country has held the status since 2000, and 2026 has already produced more cases than any year in three decades.
A review ties Gaza's disease surge to collapsed water and sanitation
A narrative review synthesising WHO, UNRWA and Gaza health-ministry field data reports the re-emergence of hepatitis A and poliovirus, over 200,000 diarrhoeal cases, and drug-resistant hospital pathogens.
Stockpiled Ebola vaccines make antibodies against the strain spreading in Congo
Blood samples from a West African vaccine trial show both licensed Ebola vaccines generate antibodies that bind Bundibugyo virus — the species with no vaccine of its own, now causing DRC's largest outbreak on record.
The Bundibugyo Ebola outbreak has reached five provinces. A treatment trial just started
Two months after the emergency declaration, confirmed cases in DRC have passed 2,100 and spread to 46 health zones. There is still no approved vaccine or treatment — but patients are now being enrolled in one.
The US matched last year's entire measles case count — with six months of 2026 still to go
CDC data through July 2 puts 2026 at 2,170 confirmed cases, just short of all of 2025's 2,289. Ninety-three percent of this year's cases are linked to active outbreaks.
WHO declares the cruise ship hantavirus outbreak over, 61 days after the first alert
Thirteen cases and three deaths, tracked across 33 countries and territories. The final determination rested on one thing: 653 contacts completing 42 days of monitoring without a single new case.
Kerala confirms another Nipah virus case — the district's sixth known outbreak since 2018
A single patient is on ventilatory support in Kozhikode. WHO says 104 contacts are being monitored and the source of infection has not been identified.
Nearly 900 confirmed Ebola cases, and the case fatality ratio keeps climbing
Five weeks into the Bundibugyo virus emergency, WHO says some new cases reflect transmission that had gone undetected for weeks — a sign the outbreak may be larger than the count shows.
China's largest chikungunya outbreak traces to an African clade, not a Southeast Asian one
Guangdong recorded 25,335 local cases in 2025 — 98% of everything China has ever reported. Genomic analysis finds every Chinese outbreak lineage matching a recent import.
A month into the Bundibugyo Ebola emergency, cases have quadrupled
WHO declared a public health emergency of international concern on 17 May. By early June, confirmed cases had climbed past 500 and Africa CDC put a price tag on the continental response: $518 million.
WHO declares a global health emergency over a rare Ebola strain with no vaccine
Eight confirmed cases, 246 suspected, and 80 suspected deaths in eastern DRC were enough for the Director-General to invoke his highest level of alarm — before convening the emergency committee that usually comes first.
A hantavirus cluster on a cruise ship is spreading person to person, a first
Five confirmed cases and three deaths, all linked to Andes virus, the only hantavirus known to pass between people. WHO calls the public health risk low but says more cases are possible.
A hospital-linked mpox outbreak in Pakistan is killing infants at a 28% case fatality rate
WHO's latest mpox report shows global case counts holding steady, but flags a Sindh province cluster where nearly all deaths were in babies under six months old.
Global cholera cases fell 17%, but DR Congo still accounts for a third of the toll
WHO's latest tally puts the 2026 year-to-date count at 58,740 cases and 732 deaths across 22 countries, down sharply from last year except in conflict-affected states.
Measles is spreading in 91% of Bangladesh's districts after a two-year vaccine stockout
WHO reports 19,161 suspected cases and 166 deaths in a single month, most in children under five. The country had been close to eliminating the disease.
Yellow fever is appearing outside the Amazon, PAHO warns, with 44% case fatality
The regional health agency counted 34 confirmed cases and 15 deaths in the first seven weeks of 2026, after 2025 brought the highest South American case total in over two decades.
A recombinant mpox virus turned up twice, and the routine test called it two clades
WHO reports two cases of a monkeypox virus carrying genetic material from both clade Ib and clade IIb. The finding that matters for surveillance is that clade differentiation PCR missed it both times.
One fatal Nipah case in Bangladesh, and a seasonal exposure route that keeps repeating
The patient drank raw date palm sap through most of January. Thirty-five contacts are under monitoring, and the six who developed symptoms have tested negative.
Nipah reached a Bengal hospital. Two nurses infected, 190 contacts tested negative
WHO was notified on January 26 of the third Nipah outbreak recorded in West Bengal. There is no licensed vaccine or drug, and the source of exposure is still under investigation.
Cholera killed 7,598 people in 2025, in fewer countries than two years before
WHO's year-end tally records 614,828 cases across 33 countries. December brought a decline — and the reported figures are known to be a fraction of the true burden.
Ethiopia's first Marburg outbreak is over: 19 cases, 14 deaths, 42 days clear
The Ministry of Health declared the end on January 26, two incubation periods after the last confirmed patient was buried. No vaccine or drug for Marburg is approved anywhere.
DR Congo declares its 16th Ebola outbreak over after 64 cases and 45 deaths
The Bulape outbreak in Kasai Province ended 88 days after it was declared, with a case fatality ratio above 70% and nearly 48,000 people vaccinated.
Diphtheria has killed 1,252 people across eight African countries this year
WHO has graded the regional resurgence a level 2 emergency. Only 5.7% of the 20,412 suspected cases were laboratory-confirmed, and the antitoxin that prevents most deaths is in global short supply.
Ethiopia confirms its first Marburg outbreak, with 206 contacts under follow-up
Six laboratory-confirmed cases and three probable ones have been reported from Jinka town. All deaths involved unsupervised burials — the step in the chain that historically turns a cluster into an outbreak.
Rift Valley fever has killed 42 people in Mauritania and Senegal since September
WHO reports 404 confirmed human cases across the two countries in six weeks. The case fatality ratio is 30% in Mauritania and 7.8% in Senegal — a gap that says more about detection than about the virus.
Clade Ib mpox spread poorly inside Burundi households — except to children
A prospective cohort of 88 index cases and 432 household contacts found a secondary attack rate of 6.15%, three times higher in under-15s. The estimated R0 inside households was 0.30.
WHO counts 445,271 chikungunya cases in 40 countries over nine months
The agency stops short of calling 2025 a global surge. Its own regional tables show why: the Americas and the Indian Ocean drove the total while the Philippines and Malaysia reported fewer cases than last year.
DR Congo declares an Ebola outbreak in Kasai after 28 suspected cases and 15 deaths
Sequencing points to a fresh spillover from wildlife rather than a resurgence of the province's earlier outbreaks. Four of the dead are health-care workers.
Cholera cases are down a fifth this year. Deaths are up by nearly half
WHO counted 409,222 cases and 4,738 deaths across 31 countries by 17 August. The divergence between the two trends is the finding, and it points at case management, not transmission.
Four Nipah cases, two deaths and a first outbreak in Palakkad, WHO reports
Kerala's ninth Nipah outbreak since 2018 produced four unlinked cases between April and July, suggesting separate spillovers from bats rather than a chain of human transmission.
Seven of Cambodia's eleven H5N1 cases this year were reported in June alone
WHO has logged 11 laboratory-confirmed human A(H5N1) infections in Cambodia between 1 January and 1 July, including six deaths. Every case had handled or culled sick poultry.