Another panda has died in the Shaanxi Rare Wildlife Rescue and Breeding Research Center in Xi'an, the capital of Shaanxi province. It is the fourth panda death caused by canine distemper since Dec 9.

The female panda, named Feng Feng, died from organ failure and breathing difficulties on Wednesday. She was diagnosed with the infection on Dec 26 and had been receiving emergency treatment from 30 experts from around the country.

According to Han Xueli, general office director of the Shaanxi wildlife rescue center, 5-year-old Feng Feng was the youngest of the four pandas to die from the disease and had fought the disease longer than the others.