ABSTRACT
O presente estudo visou estabelecer a prevalência do Citomegalovírus Humano (CMV) em gestantes e respectivos recém-nascidos, assistidos no Hospital Santa Juliana, no município amazônico de Rio Branco, Estado do Acre, período de agosto a novembro de 1998, através da Reaçäo Imunoenzimática com Final em Fluorescência (ELFA - Enzymelinked Fluorescent Assay) para CMV e avaliar possíveis fatores envolvidos na epidemiologia da doença. Tratou-se de um estudo soroepidemiológico, onde foram analisadas 607 amostras , 304 das mäes e 303 respectivos RNs, sendo dosadas CMV-IgM e CMV-IgG de ambos, gerando 1.214 dosagens para CMV. O diagnóstico laboratorial foi realizado no L.A.C. Dr. Luiz Augusto Batista também situado no mesmo município. A pesquisa de anticorpos IgG específicos foi positiva em 99,1 porcento das puérperas e de 99,66 porcento dos RNs. Quadro sorológico sugestivo de infecçäo primária gestacional por CMV foi de 0,66 porcento e de infecçäo congênita foi de 0,33 porcento
Subject(s)
Humans , Female , Pregnancy , Infant, Newborn , Cytomegalovirus Infections , Prevalence , Seroepidemiologic StudiesABSTRACT
The effects of the infection caused by the microsporidium Polydispyrenia simulii in gonads of the simuliid Simulium pertinax were evaluated. This blackfly species is the main target of control programmes in southeastern Brazil. Infected and noninfected blackflies were reared from larval stage to adults using a laboratory rearing system. There was no significant difference between the oogenic development and dimensions of ovarian follicles of healthy females compared to those reared from infected larvae. Otherwise, there was a significant difference between the fecundity of healthy females and those reared from infected larvae. In males, there was an evident reduction of motility of spermatozoids of males reared from infected larvae. The results obtained suggest that the microsporidium P. simulii have an important effect on the natural population dynamics of S. pertinax.
Subject(s)
Gonads/growth & development , Microsporidiosis , Simuliidae/growth & development , Animals , Female , MaleABSTRACT
The use of wooden troughs on stream beds, artificially colonized by blackfly larvae, is proposed for larvicide evaluations. Mortality was recorded 3 or 4 hours after treatment. Larval susceptibility was also evaluated utilizing the LT50 criterion. In there field assays Simulium (C.) pertinax populations from the litoral of S. Paulo and Rio de Janeiro States were shown to be resistant to temephos, even when subjected to high concentrations. Vectobac 12 AS, a Bacillus thuringiensis var. israelensis product, was shown to be more potent against late instar larvae and efficient in concentrations higher than 7,200 ITU/l (10 min). The LT50 to 3,744 ITU/l (10 min) was calculated as 70.9 min.
