| molecular epidemiology of dengue virus type 3 in venezuela. | during the past 40 years, dengue haemorrhagic fever and dengue shock syndrome (dhf/dss) have emerged in humans, with approximately 3 million cases reported and over 58 000 deaths. dengue virus serotypes 1, 2 and 4 (denv-1, -2 and -4) have been co-circulating in venezuela for at least the past 10 years, causing minor or major outbreaks of dengue fever (df) and dhf/dss. the first recorded outbreak due to denv-3 in venezuela dates to 1964 and the virus then seems to have disappeared. however, denv- ... | 2003 | 12771427 |