Category: Viruses & Health

News on biological viruses, outbreaks and public health.

  • West Nile virus in Spain

    West Nile virus in Spain

    Spain has recorded 141 cases of West Nile virus that were acquired within the country as of mid-October 2026. These locally transmitted infections represent the cumulative total for the year so far.

    West Nile virus continues to be a public health concern in Spain, with transmission occurring within the country’s borders. Additional information about the virus, its symptoms, transmission methods, and prevention measures is available in detailed reference materials on the topic.

    Source: Read the full story at TravelHealthPro

    This summary was written with AI assistance from the linked source.

  • Scientists discover a way to kill dangerous gut bacteria without killing the good

    Scientists discover a way to kill dangerous gut bacteria without killing the good

    Researchers have identified a natural compound called argyrin B that can effectively eliminate Clostridioides difficile, a dangerous bacterium responsible for severe gut infections, while preserving beneficial microorganisms. The compound showed strong antibacterial activity in laboratory tests and mouse experiments, with minimal impact on helpful gut bacteria. Scientists discovered that argyrin B, originally found in soil-dwelling microorganisms, targets a specific mechanism that the pathogenic bacteria depend on for survival.

    A key advantage of argyrin B is that when taken orally, it remains concentrated in the large intestine where C. difficile infections occur rather than entering the bloodstream, potentially reducing side effects in other organs. Researchers must conduct further studies to determine appropriate dosages and confirm the compound’s safety for human use. If proven effective in clinical settings, this targeted treatment could help patients avoid recurrent infections and potentially reduce the need for fecal microbiota transplants, a more invasive procedure currently used for repeat infections.

    Source: Read the full story at ScienceDaily

    This summary was written with AI assistance from the linked source.

  • Kenya reports more Ebola cases, all linked to initial patient

    Kenya reports more Ebola cases, all linked to initial patient

    Kenya has confirmed seven additional Ebola cases among individuals who had contact with a man who traveled from the Democratic Republic of Congo to Kenya in early October and subsequently died. This brings Kenya’s total to eight confirmed cases. The newly identified patient is a 49-year-old caregiver who was already in quarantine. Healthcare workers and a family member of the initial patient are among those infected. Kenyan health officials report no evidence of community transmission at this time, with 128 of 130 known contacts currently quarantined for a 21-day monitoring period.

    The Democratic Republic of Congo continues to experience a severe outbreak centered in Ituri province, with the virus now affecting eight provinces. As of the weekend, officials reported 9,455 confirmed cases and 4,561 deaths, resulting in a fatality rate of 48.2%. A significant concern is the disproportionate impact on children, who comprise 24% of new patients. However, treatment centers lack adequate resources for pediatric care, and children have limited access to experimental vaccines and new therapeutic options, prompting medical organizations to call for their inclusion in vaccine trials.

    Source: Read the full story at CIDRAP

    This summary was written with AI assistance from the linked source.

  • Scientists tested 39 sweeteners and uncovered surprising gut effects

    Scientists tested 39 sweeteners and uncovered surprising gut effects

    Researchers at the University of Cambridge tested 39 sweeteners against 25 species of gut bacteria in laboratory experiments and found that approximately three-quarters of the sweeteners altered the growth of at least one bacterial species. Some sweeteners slowed or stopped the growth of microbes associated with digestive health. The findings were published in Molecular Systems Biology, though scientists emphasized that these experiments occurred in laboratory settings rather than in human bodies, and further research is needed to determine real-world health implications.

    The study also examined how sweeteners interact with common medications and substances. Researchers discovered over 100 instances where a sweetener’s effect on bacteria changed when combined with other compounds. Notably, the sweetener isosteviol paired with the antidepressant duloxetine strongly suppressed two important gut bacteria involved in digestive health and blood sugar regulation, and altered the diversity of a simulated gut microbiome. The findings challenge the assumption that sweeteners are metabolically neutral and highlight the importance of studying how everyday combinations of ingredients and medications interact within the digestive system.

    Source: Read the full story at ScienceDaily

    This summary was written with AI assistance from the linked source.

  • New drug reverses severe fatty liver disease by repairing the gut

    New drug reverses severe fatty liver disease by repairing the gut

    Researchers at Michigan Medicine have developed an experimental drug called DT-109 that reversed severe fatty liver disease in animal studies by targeting the gut rather than the liver directly. The compound works by reducing harmful gut bacteria, strengthening the intestinal lining, and preventing inflammatory substances from entering the liver. The findings, published in The Journal of Clinical Investigation, demonstrate a new approach to treating metabolic dysfunction-associated steatohepatitis (MASH), a serious form of fatty liver disease affecting approximately 7% of the global population.

    MASH causes excess fat accumulation in the liver, leading to inflammation and cellular damage that can progress to cirrhosis, liver cancer, and liver failure. The research revealed that DT-109 interrupts a damaging cycle by reducing levels of harmful bacteria that produce ammonia, which weakens the gut’s protective barrier and allows toxins to reach the liver. While results in mice and nonhuman primates were encouraging, the drug remains experimental and has not yet been tested in humans. Researchers plan further evaluation with the goal of advancing DT-109 toward clinical trials to determine its safety and effectiveness in patients.

    Source: Read the full story at ScienceDaily

    This summary was written with AI assistance from the linked source.

  • US measles cases grow by 8% in 1 week for a total of 4,410 cases

    US measles cases grow by 8% in 1 week for a total of 4,410 cases

    Measles cases in the United States have reached 4,410 this year, representing an 8% increase over the past week alone. This single-week surge of 330 cases already exceeds the entire 2024 measles total of 285 cases. The outbreak has spawned 42 new outbreaks across the country, with 96% of confirmed cases occurring in people who were unvaccinated or had unknown vaccination status. Public health experts believe the actual number of infections is substantially higher than reported figures due to underreporting of milder cases treated at home rather than in medical settings.

    Pennsylvania has been particularly hard hit, reporting 1,260 confirmed cases and six deaths. Health officials estimate the true number of infections in the state could exceed 6,000 based on historical measles mortality rates. The CDC has deployed epidemiologists to help contain multiple outbreaks in Pennsylvania counties. Other states experiencing significant measles activity include Kentucky with 170 cases, New York with 126 cases and a declared statewide health emergency, and Ohio with 252 cases.

    Source: Read the full story at CIDRAP

    This summary was written with AI assistance from the linked source.

  • Kenya Confirms Third Ebola Case as DRC Outbreak Expands to Eighth Province with Over 9,200 Infections

    Kenya Confirms Third Ebola Case as DRC Outbreak Expands to Eighth Province with Over 9,200 Infections

    Kenya has confirmed a third Ebola case, involving a 65-year-old woman who is a close relative of the country’s first two infected individuals. The woman entered quarantine before symptoms appeared. Meanwhile, the Democratic Republic of Congo’s outbreak has expanded to an eighth province, North Ubangi, where two cases have been detected, though officials have not yet made an official announcement. The virus has now affected multiple provinces across the DRC, with Ituri province reporting the highest number of cases. According to the CDC, the outbreak has infected over 9,200 people and caused more than 4,400 deaths.

    The situation has been particularly severe among schoolchildren in the DRC, with 10 students dying from the Bundibugyo Ebola virus despite schools reopening only recently. Twenty-five confirmed cases have been identified among schoolchildren in Ituri province, with seven survivors still receiving treatment. Humanitarian organizations report that approximately seven children have died daily from Ebola since the outbreak began in May, totaling 961 child deaths. Currently, no vaccine or specific treatment exists for the Bundibugyo virus, but researchers in Uganda have initiated a phase 1 clinical trial to test a candidate vaccine’s safety and immune response effectiveness.

    Source: Read the full story at CIDRAP

    This summary was written with AI assistance from the linked source.

  • Quick takes: US human avian flu case, dengue in Florida, plague in Madagascar, MERS in Saudi Arabia, more polio cases

    Quick takes: US human avian flu case, dengue in Florida, plague in Madagascar, MERS in Saudi Arabia, more polio cases

    Washington state officials confirmed a human case of H5N1 avian flu in a resident exposed to infected dairy cows in Yakima County. The infected person is not seriously ill and is isolating at home. This detection follows the state’s first identification of H5N1 in dairy cattle at two local farms the previous week. Health authorities stated that the risk of avian flu transmission to the general public remains low.

    Florida reported 72 additional locally acquired dengue fever cases, bringing the yearly total to 368 through October 10, marking the largest U.S. dengue outbreak in recent decades. The outbreak spans eight counties, with Hillsborough County accounting for most cases at 310, though Pinellas County cases are rising at 37. Meanwhile, Madagascar confirmed four plague cases across four districts since late July, with five additional suspected cases identified the following week. Authorities treated approximately 200 patient contacts preventively and launched flea spraying and public awareness campaigns.

    Source: Read the full story at CIDRAP

    This summary was written with AI assistance from the linked source.

  • West Nile virus in France

    West Nile virus in France

    France has documented 178 cases of West Nile virus acquired within the country as of mid-October 2026. The infections have been identified across eight regions, including Provence-Alpes-Côte d’Azur, Occitanie, Île-de-France, Auvergne-Rhône-Alpes, Nouvelle-Aquitaine, Pays de la Loire, Centre-Val de Loire, and Corsica.

    This outbreak represents a significant spread of the virus throughout multiple parts of the country during 2026. The cases are classified as locally-acquired, indicating transmission occurring within France rather than imported from elsewhere.

    Source: Read the full story at TravelHealthPro

    This summary was written with AI assistance from the linked source.

  • One HPV vaccine dose often sufficient, say WHO advisers

    One HPV vaccine dose often sufficient, say WHO advisers

    The World Health Organization’s advisory group on immunization has determined that a single dose of the human papillomavirus vaccine is now the most effective strategy for preventing cervical cancer. The recommendation marks a shift from previous guidance, as persistent HPV infection can cause multiple cancer types, with cervical cancer being the fifth most commonly diagnosed cancer among women. The vaccine prevents approximately 90 percent of these cancers from developing.

    Under the new guidelines, girls aged 9 to 14 years should receive one HPV vaccine dose, though younger girls starting at age 4 may be vaccinated to improve coverage rates. The single-dose schedule can also be extended to unvaccinated women up to age 30 and boys through age 20, with women aged 25 and younger prioritized. Those who are immunocompromised, including people with well-controlled HIV, should continue receiving two doses, while severely immunocompromised individuals require three doses. The updated recommendations aim to help the WHO reach its goal of 90 percent global HPV vaccination coverage, currently at 33 percent.

    Source: Read the full story at CIDRAP

    This summary was written with AI assistance from the linked source.