<p>An outbreak of African swine fever has been confirmed in piglets being illegally transported through Funing county in China's southwestern province of Yunnan, the farm ministry said.</p>.<p>The case comes amid growing concern that a severe wave of disease in recent months has hit China's hog herd, the world's largest.</p>.<p>Six of the 36 pigs had died, the ministry of agriculature and rural affairs said in a statement late on Tuesday, while six more in the truck were sick.</p>.<p>Beijing reports few disease outbreaks on Chinese farms but some analysts have recently estimated that about a fifth of the breeding herd in northern China was affected over the winter.</p>.<p>Average piglet prices are now 91 yuan ($14) a kg, up 11% on a year ago.</p>.<p>African swine fever is usually fatal to pigs, but recent studies have identified some less lethal variants circulating in China</p>
<p>An outbreak of African swine fever has been confirmed in piglets being illegally transported through Funing county in China's southwestern province of Yunnan, the farm ministry said.</p>.<p>The case comes amid growing concern that a severe wave of disease in recent months has hit China's hog herd, the world's largest.</p>.<p>Six of the 36 pigs had died, the ministry of agriculature and rural affairs said in a statement late on Tuesday, while six more in the truck were sick.</p>.<p>Beijing reports few disease outbreaks on Chinese farms but some analysts have recently estimated that about a fifth of the breeding herd in northern China was affected over the winter.</p>.<p>Average piglet prices are now 91 yuan ($14) a kg, up 11% on a year ago.</p>.<p>African swine fever is usually fatal to pigs, but recent studies have identified some less lethal variants circulating in China</p>