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Avian influenza is a viral infection found in domestic poultry and a wide range of other birds, with some strains sporadically spilling over into wild and domestic mammals and humans. Wild waterfowl and shorebirds are often subclinically affected carriers of the virus.
Avian influenza (AI) is a highly contagious viral infection of wild and domestic birds worldwide. Avian influenza viruses are classified as low pathogenic avian influenza (LPAI) or highly pathogenic (HPAI), based on their pathogenicity in domestic chickens.
9 lut 2023 · Highly pathogenic viruses cause outbreaks in poultry farms and other commercial bird populations with high morbidity and mortality rates in affected poultry, but high morbidity and mortality was also observed in wild birds. Examples of such avian influenzas are A (H5N1) and A (H7N7).
1 gru 2021 · Low pathogenic avian influenza viruses (LPAIVs) have been widespread in poultry and wild birds throughout the world for many decades. LPAIV infections are usually asymptomatic or cause...
Avian influenza outbreaks can have heavy consequences for the poultry industry, the health of wild birds, farmer’s livelihoods as well as international trade. Farmers might experience a high level of mortality in their flocks, with rates often around 50%
21 kwi 2023 · The bird flu epidemic in China from 2013 to 2017 showed that pathogens can circulate in poultry farms for several months before being detected. Viruses spread quickly at live poultry markets. The study authors suggest to continuously monitor the animals’ health.
The chapter concludes with an example of a low-pathogen avian influenza outbreak in a group of commercial poultry farms and the steps the industry took to contain further spread of the virus, minimize the risk of exposure, and monitor and prevent further infections.
