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Concerns rise as dengue fever spreads in Asia

Vietnam and Malaysia have raised concerns over the spread of dengue fever, which has killed hundreds in Southeast Asia and infected tens of thousands this year.

Warmer weather and heavy rains have helped the mosquito-borne virus spread through the region, with a Malaysian official saying the epidemic could get worse because of global warming.

"It is partly due to global warming. We are going to see a rise in vector-borne and water-borne diseases," Ramlee Rahmat, deputy director-general of health, was quoted as saying in the New Straits Times yesterday.

The Vietnamese health minister said he was worried about the outbreak, citing 27 deaths this year and a jump in the number of cases.

"The risk of the dengue epidemic outbreak in southern and central provinces is very high in the coming time," Health Minister Tran Thi Trung Chien told the Thanh Nien newspaper.

Experts have said this year could be the worst year on record for the disease, which is transmitted by the Aedes aegypti mosquito.

There is no treatment for dengue, which can cause severe fever, headaches, rashes and muscle and joint pain. A more severe form can cause hemorrhagic fever.

Dengue infected 24,255 Vietnamese in the first half of this year, up 23 percent from a year earlier, and 19,000 of them live in southern provinces, Chien said.

The Health Ministry had also sought government approval to include dengue prevention in a national program that targets social and other dangerous diseases including HIV/AIDS for the period until 2010, Chien said.

Last month, Cambodia appealed for international help to fight dengue, which has killed more children early in this year's wet season than in all of the last.

In Malaysia, 1,044 cases were reported last week, topping the 1,000 mark for the second time in a month, signalling an epidemic, the Times said.

The disease has so far claimed 56 lives in Malaysia, compared to 46 deaths in the first half of last year.

In Indonesia, where concerns over bird flu more often grab headlines, dengue saw a dramatic peak earlier this year after much of the Jakarta area was flooded.

By May, there had been 68,636 cases and 748 deaths, Health Ministry data showed.

More than half the cases were reported in Kuala Lumpur and neighboring Selangor State.

Enforcement checks showed that most dengue-carrying mosquitoes breed in houses, construction sites, schools and factories, Ramlee was quoted as saying by the Times.
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