| the aetiology of maculopapular rash diseases in niterói, state of rio de janeiro, brazil: implications for measles surveillance. | a study investigating the causes of rash diseases using systematic laboratory testing was conducted in niterói, rio de janeiro, between january 1994 to april 1998. sera from 327 patients were tested for evidence of anti-rubella virus, measles virus, human parvovirus b19 and dengue fever virus specific immunoglobulin igm and anti-human herpes virus type 6 (hhv-6) igg antibodies. a laboratory confirmed diagnosis was achieved in 71.3% of the cases investigated: dengue fever (33.0%), rubella (20.2%) ... | 2001 | 11811885 |