Photo by Barry Wallace
Wikipedia says influenza pandemics occur when a new strain of the influenza is transmitted by humans from other animal species. Species that are thought to be important in the emergence of new human strains are pigs, chickens and ducks. These novel strains are unaffected by any immunity people may have to older strains of human flu and can spread rapidly and infect many people. Influenza A viruses can be transmitted from wild birds to other species, causing domestic poultry outbreaks, and may cause human influenza pandemics. The propagation of flu viruses throughout the world is thought, in part, to be by bird migrations, though commercial shipments of live bird products might also be implicated, as well as human travel patterns.
Meanwhile and coincidentally, Bloomberg reported in early February, that a city in China's central Hunan province says that it had recently culled almost 18,000 chickens after an outbreak of H5H1 bird flu in the city that is next to Hubei, the epicentre of the current separate coronavirus outbreak.
Meanwhile and coincidentally, Bloomberg reported in early February, that a city in China's central Hunan province says that it had recently culled almost 18,000 chickens after an outbreak of H5H1 bird flu in the city that is next to Hubei, the epicentre of the current separate coronavirus outbreak.
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BarrytheBirder
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