The World Health Organization is warning that dengue fever is on the rise in Burma, Indonesia and Thailand, and it has urged officials in those countries to act immediately to stop the spread of the disease.
A statement from the WHO Thursday said the number of cases in Indonesia has doubled since last year. In Burma, cases of the mosquito-borne disease have increased by 29% from last year, and by 17% in Thailand.
A regional WHO director Jai Narain said stamping out breeding areas is an important factor in the fight against dengue fever.
The disease can trigger flu-like symptoms, and in more extreme cases leads to internal bleeding and problems with blood circulation.
A top health official in military-ruled Burma says dengue fever already has killed more than 100 children this year.
The WHO says about 40 percent of the world is at risk from dengue.
Last year, Burma reported 130 deaths from the disease out of 11,000 cases.