Dengue fever cases climb to 7,497 in S China's Guangdong province

South China's Guangdong province has seen a sharp rise of Dengue fever cases, with 14 hundred new cases reported this week.

The total number this year has reached nearly 75 hundred, as of Wednesday, including three deaths. Authorities say it's 14 times the infections last year. The virus is transmitted by mosquitoes and mostly hits tropical and sub-tropical regions.

The symptoms include high fever, nausea, rashes, backache and headaches. It can cause severe internal bleeding as blood vessels collapse. Authorities have launched intensive operations across the province to eradicate mosquitoes.