{"id":56309,"date":"2025-11-22T21:38:19","date_gmt":"2025-11-23T01:38:19","guid":{"rendered":"https:\/\/stockmarketwatch.com\/stock-market-news\/washington-state-records-first-global-human-h5n5-avian-flu-fatality\/56309\/"},"modified":"2025-11-22T21:38:19","modified_gmt":"2025-11-23T01:38:19","slug":"washington-state-records-first-global-human-h5n5-avian-flu-fatality","status":"publish","type":"post","link":"https:\/\/www2.stockmarketwatch.com\/stock-market-news\/washington-state-records-first-global-human-h5n5-avian-flu-fatality\/56309\/","title":{"rendered":"Washington State Records First Global Human H5N5 Avian Flu Fatality"},"content":{"rendered":"<h2>Key Takeaways<\/h2>\n<ul>\n<li>A Washington state resident has died after contracting H5N5 avian influenza, marking the <em>first-ever recorded human infection and fatality globally<\/em> from this specific variant.<\/li>\n<li>Despite this unprecedented death, health officials from the <strong>Washington State Department of Health<\/strong> and the <strong>U.S. Centers for Disease Control and Prevention (CDC)<\/strong> emphasize that the <em>risk to the general public remains low<\/em>, with no evidence of human-to-human transmission.<\/li>\n<li>This incident represents the <em>second human bird flu death in the U.S. this year<\/em>, following an H5N1-related fatality in Louisiana in January, amidst over 70 reported human cases of avian influenza in 2024-2025.<\/li>\n<li>The infection is believed to have originated from the individual&#39;s <em>backyard poultry flock<\/em>, which had been exposed to wild birds, underscoring the persistent threat of zoonotic transmission.<\/li>\n<li>Pharmaceutical companies such as <strong>GSK<\/strong> (<a href=\"\/stock\/GSK\">GSK<\/a>), <strong>Sanofi<\/strong> (<a href=\"\/stock\/SNY\">SNY<\/a>), <strong>Moderna<\/strong> (<a href=\"\/stock\/MRNA\">MRNA<\/a>), and <strong>Pfizer<\/strong> (<a href=\"\/stock\/PFE\">PFE<\/a>) are key players in the bird flu vaccine landscape, with existing stockpiles and ongoing development efforts.<\/li>\n<\/ul>\n<p>A resident of Washington state has died after contracting the H5N5 strain of avian influenza, a variant never before detected in humans globally. The Washington State Department of Health confirmed the fatality on Friday, November 22, 2025, identifying the individual as an older adult from Grays Harbor County with underlying health conditions who had been hospitalized since early November. This marks a significant development in the global monitoring of avian influenza.<\/p>\n<p>Health authorities, including the CDC, have reiterated that the risk of H5N5 transmission to the broader public is currently low. There is no evidence of human-to-human spread of this virus, and no other individuals in close contact with the patient have tested positive for avian influenza. The patient&#39;s backyard flock of domestic poultry, which had exposure to wild birds, is considered the most probable source of infection.<\/p>\n<p>This fatality is the second human death linked to bird flu in the United States this year, following a death in Louisiana in January from the H5N1 strain. The U.S. has reported over 70 human cases of bird flu in 2024 and 2025, predominantly H5N1, with most cases involving mild illnesses in workers on dairy and poultry farms. Experts do not believe H5N5 poses a greater threat to human health than H5N1.<\/p>\n<p>The emergence of a new human-infecting variant underscores ongoing vigilance in the pharmaceutical sector. The U.S. maintains a bird flu vaccine stockpile, including products from <strong>GSK<\/strong> (<a href=\"\/stock\/GSK\">GSK<\/a>), <strong>Sanofi<\/strong> (<a href=\"\/stock\/SNY\">SNY<\/a>), and <strong>CSL<\/strong> (<a href=\"\/stock\/CSLLY\">OTCQX:CSLLY<\/a>). Companies actively developing bird flu vaccines include <strong>Moderna<\/strong> (<a href=\"\/stock\/MRNA\">MRNA<\/a>), <strong>Pfizer<\/strong> (<a href=\"\/stock\/PFE\">PFE<\/a>), and <strong>CureVac<\/strong> (<a href=\"\/stock\/CVAC\">CVAC<\/a>), indicating a proactive stance against potential pandemic threats.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Key Takeaways A Washington state resident has died after contracting H5N5 avian influenza, marking the first-ever recorded human infection and 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