Unlike other outbreaks, which have occurred in city hospitals, the recent cases have been confined to more remote villages. (discovermagazine.com)
The movement of pigs throughout the country over that time may mean other outbreaks will occur. (newscientist.com)
«I think the reduction of habitat definitely decreased their population size,» Hung says, noting something similar may explain the extinction of other outbreak species in North America, like the Rocky Mountain grasshopper in the western U.S. «Our study suggests that the combination of natural population size changes and human disturbances drove the rapid extinction of this bird.» (scientificamerican.com)