By Libby Ryan
In India, experts say millions of people in India are infected by the mosquito-borne plague and the Centers for Disease Control and Prevention updated a travel advisory against India because of the epidemic on Nov. 2.
Government officials in India report close to 30,000 people with dengue fever but experts say there are closer to 37 million cases per year, said the New York Times.
Sri Lanka, a country with a populations 60 times smaller than India's, reported three times as many cases of dengue fever in 2011, according to the World Health Organization.
The disease in only life threatening for close to 1 percent of those infected but symptoms of fatigue and depression can last for months in even mild cases.