Right now, the average person has very little risk of contracting bird flu, but whether that could change at some point depends on whether two viruses meet in the wrong animal.
While most of the mammals that got sick from the virus seem to have eaten dead birds, it appears thatand seals swimming off New England spread it to each other. No humans were infected in either outbreak, but the spread raised fears that the virus is getting better at moving between mammals.
The main way bird viruses could become better adapted to humans is if a pig were to be infected with both avian and human influenza, Butcher said. Swine have receptors that overlap with both birds and humans, and if a pig were infected with both, the viruses could swap genes and gain the ability to infect the other species, he said. The same thing could happen if a person who was infected via direct contact with a bird also happened to have the seasonal flu.
People should also try to avoid bringing bird feces home on their shoes or clothes, and keep their pets away from birds, the state health department said. Poultry owners should, make sure wild birds can’t get into their flocks’ feed and take steps to shield poultry from wild birds’ feces, it said. Sick poultry should be reported to the State Veterinarian’s Office.
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