This is Bird Flu Bulletin: Daily H5N1 Update for Friday, July 18, 2025. I’m your host, bringing you the latest on H5N1 bird flu—your trusted source for concise, evidence-based updates.
Top stories
First, the World Health Organization reported a new confirmed human case of H5N1 avian influenza from Bangladesh, identified earlier this week. This marks the first reported case in that country since March, underlining ongoing sporadic human infections in Asia.
Second, the U.S. Centers for Disease Control and Prevention has reaffirmed that while the H5N1 virus remains widespread in wild birds and commercial poultry, there have been no new confirmed human cases in the United States over the last 24 hours. Routine surveillance continues, especially among people with animal exposures. The CDC maintains surveillance through state health departments and says that, at present, public health risk for the general U.S. population remains low, but is being closely monitored.
Third, Cambodia’s health authorities are investigating an unusual spike in human H5N1 cases, with 11 laboratory-confirmed infections between January and July 1, and seven in June alone—a monthly increase not seen in recent years. Health officials are reviewing the situation, focusing on backyard poultry exposure and local containment measures. According to the World Health Organization, Cambodia now reports a total of 27 cases since human infections re-emerged in 2023, most in children under 18, but overall risk remains low for the general population.
Case Numbers
Compared to yesterday, global case numbers show minimal change. Bangladesh reported the most recent human case, while in North and South America, no new human infections have been documented since the previous reporting period, according to recent PAHO and WHO updates. The United States has not reported any new human infections this week.
Health Authority Guidance
The CDC this week streamlined their H5N1 reporting schedule, moving to monthly public updates instead of weekly data drops, reflecting the current stable risk assessment. The World Health Organization continues to recommend strict biosecurity for poultry workers and the public, especially in areas with active outbreaks. WHO reiterates that exposure precautions for those working with birds remain essential.
Expert Interview
We reached out to Dr. Elena Martinez, an epidemiologist specializing in zoonotic diseases. Here’s a brief snippet:
“What concerns us most is the potential for viral adaptation in mammals. At this stage, though, most human infections globally are tied to direct contact with sick or dead poultry, not sustained human-to-human transmission. Continued surveillance and public awareness are keys to preventing larger outbreaks.”
Looking Ahead
Tomorrow, monitoring efforts are predicted to focus on follow-up investigations in Bangladesh and Cambodia, evaluating any secondary infections and tracing animal outbreak sources. The CDC and other agencies are expected to provide further context on H5N1’s evolution and reinforce guidance for both the agricultural sector and the general public. No major policy shifts are anticipated in the next 24 hours, but health organizations warn that even small clusters of human cases will remain under intensive review.
Thank you for tuning in to Bird Flu Bulletin: Daily H5N1 Update. Come back next week for more trusted, up-to-the-minute information. This has been a Quiet Please production. For more, check out QuietPlease.AI.
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