Article
Failure of secondary infection with American genotype dengue 2 to cause dengue haemorrhagic fever.
Lancet (London, England) - 23 Oct 1999
Watts D M, Porter K R, Putvatana P, Vasquez B, Calampa C, Hayes C G, Halstead S B
Abstract excerpt
BACKGROUND: Population-based epidemiological studies have shown that infection with dengue type 2 (DEN-2) virus in individuals previously infected with a different serotype of the virus is a major risk factor for dengue haemorrhagic fever and dengue shock syndrome. However, the western hemisphere was spared epidemics of these two syndromes, until the introduction of a southeast Asian DEN-2 genotype. Possibly...
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