The Virus Informer

Category: Viruses & Health

News on biological viruses, outbreaks and public health.

  • Ebola cases top 9,000 in DR Congo outbreak

    Ebola cases top 9,000 in DR Congo outbreak

    The Democratic Republic of Congo is experiencing the second-largest Ebola outbreak in history, with cases reaching 9,066 and deaths totaling 4,381. This outbreak is caused by the Bundibugyo strain of the virus, which differs from the Zaire strain that triggered the 2014-2016 West Africa outbreak that killed more than 11,000 people. The current outbreak has a case-fatality rate of 48.2%, and the Bundibugyo strain currently lacks approved treatments or vaccines.

    In response to the outbreak, CEPI announced plans for a phase 2/3 trial called Tumaini to evaluate vaccine candidates against the Bundibugyo virus. The adaptive platform trial will test multiple vaccine candidates simultaneously, including Ervebo and at least two Bundibugyo-specific candidates. Meanwhile, the Bravo study, coordinated by Doctors Without Borders, is already evaluating the Ervebo vaccine’s effectiveness against the Bundibugyo strain in North Kivu and Ituri province, where 857 frontline workers have been vaccinated.

    Source: Read the full story at CIDRAP

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

  • Cholera in Zambia

    Cholera in Zambia

    Zambia has experienced a significant cholera outbreak since its declaration in late July 2026. By mid-October, health authorities had documented 909 total cases throughout the country, of which 149 were confirmed through testing. The outbreak has resulted in 25 deaths among those affected.

    The disease has spread across multiple regions of the country, affecting 12 districts spanning five provinces. The capital city of Lusaka has been hit hardest, accounting for 457 of the reported cases. The district of Chibombo has been the second most affected area, with 221 cases identified since the outbreak began.

    Source: Read the full story at TravelHealthPro

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

  • Dengue in Italy

    Dengue in Italy

    Italian health authorities have documented 68 cases of locally transmitted dengue fever within the country as of October 8, 2026. The infections were distributed across six regions, with Tuscany accounting for the largest share at 36 cases. Puglia followed with 20 cases, while Veneto reported 7 cases. The remaining cases were identified in Lombardy and Campania with 2 cases each, and Lazio with a single case.

    These figures represent dengue infections acquired within Italy rather than cases brought in from other countries. The outbreak highlights the disease’s presence across multiple Italian regions during 2026. Additional information regarding dengue transmission, symptoms, and prevention measures is available in related health briefings.

    Source: Read the full story at TravelHealthPro

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

  • Study finds most high-risk patients don’t receive recommended flu treatment

    Study finds most high-risk patients don’t receive recommended flu treatment

    A recent study published in Open Forum Infectious Diseases found that fewer than half of high-risk patients received recommended antiviral medication when seeking outpatient flu treatment. According to the Centers for Disease Control and Prevention, oseltamivir should be given “as soon as possible” to people at higher risk for flu complications, including those over 64, children under 2, and people with conditions such as asthma or heart disease. However, only 42% of high-risk patients started the medication during the 2023-2024 and 2024-2025 flu seasons, and just 42% completed the full course of treatment.

    The research team, led by CDC scientists, also found significant differences in treatment rates depending on where patients received care. Emergency department patients were least likely to start the medication, with only 27% beginning treatment compared to 50% of those seeking care at non-emergency facilities like walk-in clinics. Children under age 2 were the least likely group to complete the full oseltamivir course. The study was conducted at academic medical centers in Tennessee, New York City, and Missouri, so results may vary in other settings.

    Source: Read the full story at CIDRAP

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

  • Long-COVID symptoms may be linked to bacterial mix in the mouth, lungs

    Long-COVID symptoms may be linked to bacterial mix in the mouth, lungs

    Researchers have discovered that people experiencing severe long COVID have significantly different bacterial communities in their mouths and lungs compared to those with mild symptoms. An observational study published in the European Respiratory Journal examined 771 adults who had been hospitalized with COVID-19. Six months after hospital discharge, scientists collected saliva and lung samples from participants and analyzed their bacterial composition alongside symptom questionnaires.

    The study found that patients with very severe long COVID symptoms had less diverse oral bacteria than those with mild symptoms. This group with reduced bacterial diversity experienced the highest rates of breathlessness, fatigue, impaired lung function, and reduced exercise capacity. Researchers suggest that understanding these differences in bacterial communities could lead to a clearer understanding of long COVID and potentially better treatment approaches for the condition.

    Source: Read the full story at CIDRAP

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

  • With Pennsylvania leading the way, US measles cases top 4,000

    With Pennsylvania leading the way, US measles cases top 4,000

    The United States confirmed 4,080 measles cases as of this week, marking the highest number since 1991. Pennsylvania leads the outbreak with over 1,100 cases, accounting for more than a quarter of the national total. The country has experienced nine consecutive weeks of double-digit case increases, with health officials warning that at the current pace, measles cases will easily surpass last year’s total of 2,289 by year’s end. About 95 percent of confirmed cases involve people who are unvaccinated or have unknown vaccination status.

    Pennsylvania has reported five measles-related deaths, though the CDC currently lists only two deaths nationally. Nationally, approximately 17 percent of cases involve children under age 5, and 42 percent involve individuals under age 19. The CDC has distributed $100 million to states to support outbreak response efforts, including immunization programs and surveillance activities. Health officials emphasize that the MMR vaccine is 97 percent effective at preventing measles after two doses and urge vaccination rates to reach the 95 percent threshold needed for herd immunity.

    Source: Read the full story at CIDRAP

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

  • Quick takes: NIH extramural research awards, Ebola in new DR Congo health zone, polio in 3 countries

    Quick takes: NIH extramural research awards, Ebola in new DR Congo health zone, polio in 3 countries

    The National Institutes of Health allocated its complete 2026 extramural research budget of $35.3 billion by the end of September. The funding supported a record number of early-stage investigators, with 1,648 recipients representing a 25% increase compared to the ten-year average. The NIH distributed 17,543 new grants and renewals, slightly exceeding the previous year’s total but falling below recent historical averages. The agency also introduced Generation Discovery, a new initiative designed to recruit 100 early-career researchers into its intramural research division.

    Health emergencies continued across multiple regions this week. The Democratic Republic of Congo reported 8,809 Ebola cases with 4,242 deaths, with the virus recently spreading to the Alimbongo health zone. Transmission rates remain intense, though weekly case increases have moderated slightly. Two vaccine candidates for the Bundibugyo Ebola virus entered phase 1B clinical trials. Meanwhile, polio cases emerged in three countries: Pakistan reported one wild poliovirus infection, the Democratic Republic of Congo documented six circulating vaccine-derived cases, and South Sudan identified six circulating vaccine-derived infections.

    Source: Read the full story at CIDRAP

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

  • Lawmakers want answers from CDC director on childhood vaccine recommendations, measles response

    Lawmakers want answers from CDC director on childhood vaccine recommendations, measles response

    Democratic lawmakers have sent a letter to CDC Director Erica Schwartz expressing concern about her leadership and requesting clarity on how the agency plans to respond to recent vaccine policy changes. The lawmakers asked whether Schwartz or CDC scientists were consulted about President Trump’s August executive order that reduced recommended childhood vaccines from 18 to 11 and called for separating the MMR vaccine into three individual shots. The letter references Schwartz’s confirmation hearing pledge to uphold scientific integrity and evidence-based public health decisions.

    The lawmakers also raised questions about the CDC’s measles response, noting a discrepancy between Pennsylvania officials’ identification of five measles deaths and the CDC’s acknowledgment of only two deaths. They questioned whether the agency is altering verified state data and asked Schwartz to explain delays in opening orders for COVID vaccines through the Vaccines for Children program for low-income children. The letter demands written responses by October 16th.

    Source: Read the full story at CIDRAP

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

  • Kenya reports its first Ebola case, in man who died after arriving from DR Congo

    Kenya reports its first Ebola case, in man who died after arriving from DR Congo

    Kenya has confirmed its first Ebola case, a Kenyan citizen who had lived in the Democratic Republic of Congo for 11 years. The patient traveled from the DRC to Uganda by road on October 2, then flew to Nairobi, Kenya on October 3 via Jambojet, passing through airport health screening. After arriving in Nairobi, he was taken to the hospital by a relative and isolated. He displayed symptoms including fever, chills, and bleeding under the skin, and tested positive for Ebola Bundibugyo virus. The man has since died and officials announced plans for a safe burial.

    Kenyan health authorities are monitoring 28 contacts in the country and seeking to locate 23 passengers and four crew members from the patient’s flight. Kenya has been preparing for potential cases by screening over 652,000 travelers, testing 267 suspected samples, and training approximately 5,000 healthcare workers on Ebola prevention since the outbreak was declared in May. The ongoing DRC outbreak has resulted in 8,544 confirmed cases and 4,114 deaths, with a case-fatality rate of 48.2%.

    Source: Read the full story at CIDRAP

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

  • Tampa woman dies from dengue as Florida fights surge of cases

    Tampa woman dies from dengue as Florida fights surge of cases

    An 80-year-old woman from the Tampa area died last month from dengue fever, marking Florida’s first fatality from the mosquito-borne illness. As of late September, state health officials reported 252 locally acquired dengue cases across seven counties, along with 20 infected mosquito pools. This represents the highest number of locally acquired dengue cases in the United States in decades.

    Hillsborough County, which includes Tampa, has been hit hardest with 223 reported cases. County officials extended a local dengue emergency order through October 8 and increased mosquito treatment efforts by air and ground in affected neighborhoods after detecting dengue virus activity in the mosquito population. Because no specific treatments exist for severe dengue infections, patients receive supportive care and typically recover at home. Residents are being advised to take precautions against mosquito bites.

    Source: Read the full story at CIDRAP

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

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