| [frequency of measles, rubella, dengue and erythema infectiosum among suspected cases of measles and rubella in the state of pernambuco between 2001 and 2004]. | this study had the aim of investigating the frequency of measles, rubella, dengue and erythema infectiosum among suspected cases of measles and/or rubella in the state of pernambuco, brazil. a total of 1,161 serum samples collected between 2001 and 2004 were tested for these four viral diseases, using enzyme immunoassays to detect igm antibodies. out of this total, 276 (23.8%) samples were positive for one of the four viral diseases analyzed. there were 196 positive cases (16.9%) for dengue, 38 ... | 2008 | 18853004 |