Reemergence of dengue serotype 3 may increase severity of outbreaks of the disease in Brazil

The reemergence of dengue virus serotype 3 (DENV-3) in Brazil after 17 years could help worsen fresh outbreaks of the disease there, since the population is not immunized against this serotype, and serotypes 1 and 2 (DENV-1 and DENV-2) continue to circulate…
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