The Decibel What the spread of bird flu signals about another pandemic
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Dec 9, 2024 André Picard, health columnist for The Globe, dives into the urgent implications of the recent avian flu cases, including Canada’s first human infection. He discusses alarming transmission rates among species, like pigs and poultry, and the economic impact on livestock. Picard emphasizes the crucial need for pandemic preparedness, drawing lessons from COVID-19. He also highlights strategies for preventing the virus's spread, including biosecurity measures and vaccine development challenges. This discussion calls for heightened vigilance against future outbreaks.
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Inter-species Transmission
- Avian flu spreads within species through coughing and sneezing but rarely jumps between species.
- Inter-species transmission usually occurs through scavengers or close contact, as with poultry and wild birds.
Pigs as a Mixing Bowl
- The spread of avian flu to pigs is particularly concerning because pigs are biologically similar to humans.
- Pigs can act as a "mixing bowl" for flu viruses, potentially increasing the risk of human transmission.
Infected Pig in Oregon
- A pig on an Oregon farm, which housed both poultry and swine, was infected with H5N1.
- The infection appears to be isolated, with no evidence of spread to other pigs.