Dengue

Dengue is the most rapidly spreading mosquito borne viral disease in the world Dengue as spread in the last 50 yrs with a 30 fold increase Known in historical times as water poison in China the word Dengue is derived from Swahili phrase denoting cramp like seizure Same distribution as malaria ( tropics ) and about 2.5 billion people live in dengue endemic countries ( more than 125 countries are known to be dengue epidemic ) Estimated 50 million infections annually (WHO 2009 ) Risk factors are influenced by local spatial variations of rainfall , temperature , relative humidity , degree of urbanization and quality of vector control services in urban areas( WHO ) Geographic expansion and rapid increase in incident cases , epidemics and hyperendemicity has resulted in more severe forms of dengue WHO has cited that dengue may be more widespread than estimated by academic groups and factors as inadequate disease surveillance , misdiagnosis and low levels of reporting contribute towards this discrepancy It is also estimated that dengue is likely to spread further due to factors as modern dynamics of climate change , globalization , travel . trade , socioeconomics , settlement and viral evolution

DENV -Small...