The number of confirmed A/H1N1 cases on the Chinese mainland rose to 15 on Thursday, after one more case each reported in eastern Fujian Province and Shanghai, while new suspected case each reported in Shanghai and Guangdong, health authorities said.

A medical worker checks the temperature of a patient at the Huashan Hospital, where a newly confirmed A/H1N1 influenza case is hospitalized, in Shanghai, east China, on May 28, 2009. A 26-year-old Chinese female, arrived in Shanghai on May 23 on American Airlines flight AA289 from Chicago, became the second confirmed A/H1N1 flu case in Shanghai on Thursday. [Xinhua]

The newly confirmed case in Fujian involved a 25-year-old Chinese male who arrived in Beijing on Monday evening on Air China flight CA982 from New York and then flew to Fuzhou, capital of Fujian, on CA1821, the same day.

He had a cough and sore throat early on Tuesday and went to the Fuzhou No. 2 Hospital, where his temperature was measured at 37.5 degrees Celsius.

He tested positive for A/H1N1 flu on Wednesday by the Fujian Provincial Disease Control and Prevention Center and positive again on Thursday by the Chinese Center for Disease Control and Prevention.

The man, who was being treated at the Fuzhou Pulmonary Hospital, was in stable condition with a temperature of 37 degrees Celsius, the health bureau said.

The bureau said 84 people had been exposed to him. In Fujian, 19 among the 23 exposed people in the province had been quarantined while the other four had not been found. Others were been sought nationwide.

The Shanghai patient, a 26-year-old Chinese female, who was reported as suspected case Wednesday, had been tested positive to A/H1N1 by the Chinese Center for Disease Control and Prevention, said Chen Qiwei, spokesman for the municipal government, here on Thursday afternoon.

She is the second confirmed case in Shanghai, Chen said.

The patient, arrived in Shanghai on May 23 on American Airlines flight AA289 from Chicago, began to cough early Monday. Her temperature rose to 38 degrees Celsius early on Tuesday, Chen said.

Her parents and the driver of a taxi that took her to Huashan Hospital have been put under a one-week medical observation.

Her temperature had dropped to 37.4 degrees Celsius and she had been in stable condition, Chen said.

Shanghai reported Thursday one more suspected case, who took the same flight CA178 from Australia to Shanghai on May 23 with the city's first case.

The patient, 22, male, Chinese nationality, studies in an Australian university. His temperature rose to 37.7 degrees Celsius at 5:15 p.m. Wednesday and he was tested positive to A/H1N1 by the Shanghai Municipal Center for Disease Control and Prevention on Thursday, Chen said.

He still needs a final review from the Chinese Center for Disease Control and Prevention.

The other new suspected case was reported in Guangzhou, capital of south China's Guangdong Province, Thursday afternoon.

The suspected case involves a 28-year-old male Chinese American, who works in a hospital in New York, said the provincial health bureau.