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News of the death of a laboratory worker at a research facility in Russia from suspected pneumonic plague has swept the world, sparking concern about the risk of an outbreak, or even a pandemic. The medieval-sounding disease still causes a handful of cases around the world every year — yes, the plague never went away — and it’s fully treatable with antibiotics. (Kee, 10/7)

The World Health Organization (WHO) is pressing Russia for more information about the unexplained death of a worker at a Siberian plague research institute — and a potential second incident. WHO Director-General Tedros Adhanom Ghebreyesus said in a statement Tuesday that the agency has asked Russian authorities to clarify what caused the severe case of pneumonia that killed the 28-year-old worker at the Irkutsk Anti-Plague Research Institute last week. (Swai, 10/7)

President Donald Trump on Wednesday said that U.S. officials did not believe that a Russian lab worker’s reported death, which has attracted global scrutiny, was linked to a bioweapon. “We’re going to find out soon enough, but we don’t think so,” Trump told reporters in the Oval Office. The 28-year-old worker’s death last week has drawn international attention because she worked at an institute in Siberia that studies plague. Russia’s elevated response — including imposing quarantines — and the lack of public information about the case have also raised questions, given that the country’s measures significantly outpace the normal response to a plague-linked death. (Diamond, Sun and Ilyushina, 10/7)

Sen. Rand Paul (R-Ky.) raised concerns that Russia could be conducting biological weapons research involving the plague as global health officials seek more information about the mysterious death of a worker at a Siberian lab. The 28-year-old worker died Friday after being hospitalized from a severe case of pneumonia, prompting the World Health Organization to seek further information from Russian authorities on her unexplained death and a potential second incident. Paul, who chairs the Senate Homeland Security and Governmental Affairs Committee, said in an interview Tuesday that Russia’s past biological weapons program and the circumstances surrounding the worker’s death warranted closer scrutiny. (Swai, 10/7)

The ancient word "plague" is back in the headlines. NPR's Russia correspondent Charles Maynes reported this week on what we know about a Russian researcher working in a lab studying the plague who died from pneumonia of an unknown origin last week. (Doucleff and Silver, 10/7)

A deadly measles outbreak in Pennsylvania, which has infected more than 975 people this year and been linked to five deaths, has also infected at least 50 pregnant women in the state. Doctors in outbreak areas are making changes to how they care for pregnant patients and their babies, offering a glimpse of what may be in store across the nation as cases spread. (Rodriguez, 10/6)

Five people have died from measles-associated causes in the United States this year. This fatality rate suggests there may have been 5,000 to 15,000 infections in 2026, since one to three of every 1,000 children who become infected with measles will likely die from respiratory and neurologic complications, according to the Centers for Disease Control and Prevention (CDC). The CDC's current 2026 measles case tally is 3,887. Loss of life in the weeks following an infection is just one of the devastating outcomes of measles. (Boden, 10/7)

This year’s flu season started months early and in an unexpected part of the country, according to health officials. The unusually early start to the season has prompted local health officials to urge people to get their flu shots as soon as possible. (Kwok, 10/8)

" We have so many folks who are walking around who have dengue. They're pretty much asymptomatic. They don't even know that they have it," says Carla Fry, with the Hillsborough health department. (Staletovich, 10/7)

US detections of Cladophialophora bantiana, a rare but dangerous fungus that most often targets the central nervous system (CNS), rose fourfold from 2023 to 2025, write researchers from the University of Washington (UW) in Seattle and the Centers for Disease Control and Prevention. For the study, published last week in Morbidity and Mortality Weekly Report, the team analyzed all C bantiana cases identified through fungal polymerase chain reaction (PCR) testing at UW’s lab from January 2009 to July 2026. (Van Beusekom, 10/7)

Kenya said 10 people are in quarantine after a Kenyan man died in Nairobi on Monday from the Bundibugyo strain of Ebola currently circulating in the Democratic Republic of Congo (DRC). Officials also said they are attempting to trace 57 other case contacts. The man, who had lived in DRC for 11 years, arrived in Kenya over the weekend. He had been sick for one month before traveling to Nairobi via a flight from Uganda. Kenyan officials say they do not know why health screenings failed to detect the man in either the DRC, Uganda, or at the Nairobi airport. (Soucheray, 10/7)

The Ebola outbreak in Congo is creating new hot spots where there’s little to no support for patients, responders and officials say, as health workers admit there could still be a long way to go in fighting the disease that has killed over 4,000 people. More than 70% of new cases are still coming from outside of known contacts and at least 60% of deaths are outside of treatment centers, Africa CDC Director-General Dr. Jean Kaseya told The Associated Press. “There are so many other people who are becoming sick, who are not tested, treated, or listed,” said Kaseya on Tuesday. (Asadu, 10/7)