At least two flu pandemics in the past century—in 1957 and 1968—originated in the Middle Kingdom and were triggered by avian viruses that evolved to become easily transmissible between humans. Although health authorities have increasingly tried to ban the practice, millions of live birds are still kept, sold and slaughtered in crowded markets each year. In a study published in January, researchers in China concluded that these markets were a “main source of H7N9 transmission by way of human-poultry contact and avian-related environmental exposures.
This story is a few years old but prescient.
At least two flu pandemics in the past century—in 1957 and 1968—originated in the Middle Kingdom and were triggered by avian viruses that evolved to become easily transmissible between humans. Although health authorities have increasingly tried to ban the practice, millions of live birds are still kept, sold and slaughtered in crowded markets each year. In a study published in January, researchers in China concluded that these markets were a “main source of H7N9 transmission by way of human-poultry contact and avian-related environmental exposures.