Conditions where Dengue thrives

http://findarticles.com/p/articles/mi_m3225/is_n3_v45/ai_12026528

In this site I found, it says that dengue can be transmitted to person to person through the bite of a certain "host mosquito" called a female Aides aegypti mosquito. This mosquito apparently also plays a big part in yellow fever.

The places that these mosquitoes breed in include: "artificial water entrapment receptacles and is found in highest density near private homes. Discarded tires are a favorite site, as well as water storage receptacles, cans and open bottles." - I can conclude that people living in places that are well-littered with trash have greater chances of getting dengue fever.

The site goes on to say:

"The eggs are hardy and can resist drying for several months. The mosquito has a short flight range, and in urban areas, dengue frequently spreads from house to house in a contiguous manner, sometimes along one side of a street.(5) A. aegypti is widely disseminated in the United States (Figure 1), and consequently the potential for wider indigenous transmission exists. The transmission cycle begins when a female mosquito bites an infected host during the four- to five-day period of viremia, which occurs just before the onset of symptoms.(9)"

The latter part of this paragraph says that the A. aegypti, which is the mosquito that carry the disease, has multiplied in the States and there is a potential that more people will be affected by the disease. It may become an epidemic that had never seemed to reach our country.

.... And the last sentence basically says that an infected person will only discover that he or she has dengue fever within four or five days after they have been bitten by the mosquito.



Centers for Disease Control and Prevention
http://www2.ncid.cdc.gov/travel/yb/utils/ybGet.asp?section=dis&obj=dengue.htm

Most of the countries with dengue fever are tropical, where the weather is really humid and many rain forests are thriving. This is the problem for the poorer tropical countries where mosquitoes are thriving and cleanliness is an issue.

I am still not quite sure how dengue fever attacks the body on the molecular level. I will try to get some information on that soon.