Finisher pigs in a pen in a barn
Young pigs in a pen
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Piglets nursing on a sow
Principles of creating herd immunity apply to the human race when discussing COVID-19, similar to working hog herds through infections of a myriad pathogens.
pigs at a feeder
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farrowing
Finishing hogs in a pen on a farm
When the provinces with outbreaks and neighboring provinces completely banned feeding swill to pigs, the epidemic was greatly reduced.