ETIDIOH - NEW

{Excerpt}  Avian influenza A(H9N2) :  -- Guangdong Province :  1) An individual with onset in November 2025.  -- Guangxi Zhuang Autonomous Region :  2) An individual with onset in November 2025.  -- Hubei Province:  3) An individual with onset in November 2025.  (...) Source:  Link:  https://www.chp.gov.hk/files/pdf/2025_avian_influenza_report_vol21_wk51.pdf ____

  Abstract Many pathogens, both those with human spillover potential as well as avian-specific viruses, are maintained in wild bird populations . While much surveillance for influenza A viruses (IAVs) is performed annually, surveillance for other pathogens is limited. Sampling of wild birds is often time-consuming , labour-intensive, involves physically handling wild birds, often limited in sample size, and involves handling of potentially infected birds , posing an increased risk of direct exposure for personnel. Given this, additional methods for surveillance are needed. Longitudinal, bi-weekly fecal and sediment sampling was performed at various sites in southern Manitoba, Canada , particularly focused in Winnipeg from May - October 2025. Sites were chosen based on the suitability of the area for waterfowl habitat , the presence of waterfowl in the area, as well as sites in proximity to reported outbreaks of H5N1 influenza virus . Fecal and sediment samples were collected and sc...

  Abstract The recent emergence of highly pathogenic H5N1- especially clade 2.3.4.4b has led to widespread mortality in poultry and wild birds and has raised significant concerns for the dairy industry and human health. Migratory waterfowl are considered the main source of infection, and we used publicly available surveillance data and bird observation data from continental North America to show clear seasonal signals correlated with waterfowl movement, both on the continental scale and in three of the four flyways . In early 2024, the virus expanded its host range , and we observed a phase transition with the loss of the seasonal signal coupled with a concomitant increase in the proportion of mammalian cases . We also identified a second harmonic , with a regional east-to-west movement with infections spreading between regional flyways , followed by local viral amplification. We likened this to the movement of balls in a Newton's Cradle with an analogy between potential and viral ...