As China has largely brought the coronavirus pandemic under control within its borders, another highly contagious disease—one affecting livestock—is reappearing and raising questions about the accuracy of the country’s reporting.

For about four months from mid-November last year, pig farms in China reported no new cases of African swine fever, the deadly hemorrhagic disease that last year resulted in the loss of around 120 million hogs in the country. Chinese authorities said in February that the epidemic situation was stable.

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