Canadian public health officials said Saturday a "high-risk" passenger who was aboard the cruise ship MV Hondius tested "presumptive positive" for the Andes hantavirus.

The World Health Organization declared Sunday the Ebola disease outbreak in Congo and Uganda a public health emergency of international concern.

The World Health Organization declared the Ebola disease outbreak caused by a rare virus in Congo and neighboring Uganda a public health emergency of international concern on Sunday, after more than 300 suspected cases and 88 deaths.

The New York City Housing Authority developed Mold Busters, a mold-removal program, in response to a 2013 class-action lawsuit filed by residents suffering from asthma due to mold in their apartments. New research presented at the ATS 2026 International Conference shows that the program results in nearly 2,800 fewer asthma-related emergency department visits annually.

Researchers at the Ruhr University Bochum have developed a novel antiviral concept: Using the CRISPR/Cas13 system, they were able to specifically suppress the replication of the hepatitis E virus in human cells. Hepatitis E is a common cause of acute liver inflammation worldwide, yet effective specific therapies are still lacking. The team has now demonstrated that the virus can be targeted using an RNA-directed CRISPR system. The results, published on May 4, 2026, in the journal JHEP Reports, open new perspectives for the development of antiviral strategies.

Alpha1-antitrypsin deficiency, an inherited disorder affecting 100,000 people in the U.S., causes a progressive and incurable lung disease. A subset of patients with the condition—about 10% to 15%—also develop liver disease because of the accumulation of the aggregated protein variant resulting from the genetic error that causes the disease. Now, researchers at Washington University School of Medicine in St. Louis have identified a previously unknown biological process that helps explain why only a subset of the affected population develop liver disease.

Pregnancy is often regarded as a time to prepare the nursery, but it is also a useful moment to get the kitchen ready.

Obesity has long been the invisible health crisis looming over humanity, with rates climbing globally. There is some positive news now emerging from a multi-decade study spanning several nations. A recent study published in Nature by the Non-Communicable Disease Risk Factor Collaboration (NCD-RisC), a global network of health scientists, analyzed obesity-related data from 232 million people aged 5 years or older, spanning 45 years.

Treating breast cancer that has begun to spread around the body with targeted radiotherapy could help patients to live longer without their cancer getting worse, according to the results of a small randomized controlled trial presented at the Congress of the European Society for Radiotherapy and Oncology (ESTRO 2026).

Two larger doses of radiotherapy for prostate cancer cause no additional side effects compared to the standard five doses of radiotherapy, according to results presented at the Congress of the European Society for Radiotherapy and Oncology (ESTRO 2026). Experts say the research brings us one step closer to safe and effective radiotherapy in only two out-patient sessions.