Beijing ? China reported a new human case of bird flu Thursday, and the World Health Organization disputed Indonesia’s claim that the two were close to resolving a dispute about sharing virus samples that could be used to develop a commercial vaccine.

Also Thursday, officials in Myanmar said the United Nations has pledged assistance in coping with an outbreak discovered on a poultry farm on the outskirts of its largest city, Yangon.

The human infection in China occurred in the coastal province of Fujian, where a 44-year-old farmer surnamed Li was diagnosed Feb. 18 after he developed a fever and began coughing, the official Xinhua News Agency said.

It was the mainland’s first human case of bird flu since Jan. 10, when the government said a 37-year-old farmer in Anhui province in eastern China had contracted bird flu but had recovered.

Several countries are developing vaccines to protect against H5N1, which has been responsible for at least 167 human deaths worldwide, more than one-third of them in Indonesia.