Thailand has one more death related to A/H1N1 influenza virus infection, bringing the country's death toll to 18, according to a local media report on Sunday.

The latest victim was a 19-year-old rubber farmer from Thung Yai district, southern province of Nakhon Si Thammarat, Nopporn Chuenklin, head of the province public health office was quoted by the website of the Bangkok Post as saying.

The youth also suffered from a complication of leptospirosis, Nopporn said.

Health officials were trying to find where and how the victim was infected since he had not been to Bangkok since the A/H1N1 flu outbreak. His family members and neighboring villagers were also being examined.

Early Sunday, a woman from central province of Rachaburi was reportedly died of the disease, the 17th fatality of the epidemic.

As of Sunday morning, Thailand has confirmed 247 infection cases, bringing the country's cumulative total to 3,475.

Thailand had its first two confirmed patients on May 12.

(Xinhua News Agency July 13, 2009)