Category: Avian Influenza
What Would It Take for Bird Flu to Spread among Humans?
Scientific American H5N1 avian influenza has long been a concerning virus. Since its discovery in 1996 in waterfowl, bird flu has occasionally caused isolated human cases that have quite often been fatal. But last year H5N1 did something strange: it started infecting cattle. The absolute oddity of this leap may have been somewhat lost in the flood of […]
Jul 30, 2025
Cambodia reports 14th human H5N1 bird flu infection in 2025
BNO News Cambodia has confirmed a new human case of H5N1 avian influenza in a 26-year-old man who is currently receiving intensive medical treatment, according to health officials. It is the country’s 14th confirmed human case of H5N1 this year. The man, from Kravan village in Siem Reap Province, tested positive for the virus on […]
Jul 30, 2025
Is Bird Flu Gone for Good?
Johns Hopkins U.S. bird flu infections have declined in both birds and mammals, prompting CDC to shift from weekly to monthly reporting. But is the outbreak really over? It’s not unusual for wild birds to be infected by influenza viruses. But the strain of highly pathogenic avian influenza that began causing outbreaks in the U.S. in […]
Jul 23, 2025
New study advances theory on why most U.S. bird flu cases have so far been mild
STAT Researchers believe immunity to an earlier virus may play a role, but not everyone agrees. The H5N1 bird flu virus has historically extracted a heavy toll when it infects humans, with nearly half of confirmed cases ending in death over the past three decades. But of the 70 cases reported in the United States over the […]
Jul 23, 2025
Cambodia reports 13th human case of H5N1 bird flu this year
BNO Cambodia has confirmed a new human case of H5N1 bird flu in a 6-year-old boy who is currently in intensive care, according to health officials. It is the country’s 13th confirmed human case in 2025. The child, from Bos Russey village in Tbong Khmum province, tested positive for H5N1 avian influenza on Monday. He […]
Jul 23, 2025
The impact of highly pathogenic avian influenza H5N1 virus infection on dairy cows
Nature Highly pathogenic avian influenza (HPAI) H5N1 virus has been associated with severe mastitis in dairy cows, leading to decreased milk production. Here we investigated the impact of H5N1 virus infection in health and production parameters in an affected dairy herd in Ohio. Clinical disease, which lasted for about three weeks, was recorded in 20.0% […]
Jul 16, 2025
‘Milk-stealing’ calves spread deadly bird flu virus among US cows, China study reveals
Interesting Engineering A recent study has unraveled the mystery of how the H5N1 avian influenza virus infects the mammary glands of dairy cows, despite typically being a respiratory pathogen. Researchers, led by Professor Hualan Chen of the Harbin Veterinary Research Institute in China, have also presented a roadmap for managing the disease in cattle. “This […]
Jul 16, 2025
Bangladesh and India alert WHO about new H5N1 infections
CIDRAP Bangladesh and India alert WHO about new H5N1 infections. In a monthly zoonotic flu update, the World Health Organization (WHO) said Bangladesh and India have reported new H5N1 avian flu cases that were previously unreported. Bangladesh’s patient is a child from Chittagong division in the country’s southeast who was admitted to the hospital on May […]
Jul 16, 2025
Pennsylvania commercial gamebirds struck by avian flu
Watt Poultry Highly pathogenic avian influenza (HPAI) was confirmed in a flock of commercial upland gamebirds in Lancaster County, Pennsylvania. According to information from the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS), the presence of HPAI was confirmed on July 2. The gamebirds were being raised for release, and the flock […]
Jul 9, 2025
Cambodia Reports Surge in Human Infections with Avian Influenza A(H5N1)
Global Biodefense Unusual spike in human infections highlights ongoing risks at the human-animal interface and the need for cross-sectoral public health action. Between January and July 2025, Cambodian health authorities reported 11 laboratory-confirmed cases of human infection with avian influenza A(H5N1), including six fatalities. Notably, seven of these cases occurred in June alone—an unusual monthly spike. These […]
Jul 9, 2025