Dengue fever - Wikipedia, the free encyclopedia
en.wikipedia.org • Jul 24, 2010Unlike malaria, dengue is just as prevalent in the urban districts of its range as in rural areas. Each serotype is sufficiently different that there is no cross-protection and epidemics caused by multiple serotypes (hyperendemicity) can occur. Dengue is transmitted to humans by the Aedes (Stegomyia) aegypti or more rarely the Aedes albopictusmosquito, both of which feed exclusively during daylight hours. The WHO says some 2.5 billion people, two fifths of the world's population, are now at risk from dengue and estimates that there may be 50 million cases of dengue infection worldwide every year. The disease is now endemic… Full Story »
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Topics:
- Immune System
- Vaccine
- Population
- Bbc
- Microbiology
