A previous study shows the H7N9 bird flu seems to be circulating in areas of China that have large populations of pigs and humans. Photo: Reuters A previous study shows the H7N9 bird flu seems to be circulating in areas of China that have large populations of pigs and humans. Photo: Reuters
A previous study shows the H7N9 bird flu seems to be circulating in areas of China that have large populations of pigs and humans. Photo: Reuters

Flu infections rising among pigs in southern China, says study

Risk of spillover to humans is 'constant or growing', says the author of the study

A previous study shows the H7N9 bird flu seems to be circulating in areas of China that have large populations of pigs and humans. Photo: Reuters A previous study shows the H7N9 bird flu seems to be circulating in areas of China that have large populations of pigs and humans. Photo: Reuters
A previous study shows the H7N9 bird flu seems to be circulating in areas of China that have large populations of pigs and humans. Photo: Reuters
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