Knowing where, when and for how long mallard ducks -- natural carriers of avian influenza -- stop and rest as they migrate can help predict the probability that they will spread bird flu to backyard ...
The CDC notes that the poultry worker from Ohio had been hospitalized with respiratory and nonrespiratory symptoms.
Extreme weather is shifting the migratory patterns of birds, increasing the chances of deadly avian flu outbreaks on farms.
Knowing where, when and for how long mallard ducks—natural carriers of avian influenza—stop and rest as they migrate can help ...
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