Causality and cointegration analysis between macroeconomic variables and the Bovespa.

The aim of this study is to analyze the causality relationship among a set of macroeconomic variables, represented by the exchange rate, interest rate, inflation (CPI), industrial production index as a proxy for gross domestic product in relation to the index of the São Paulo Stock Exchange (Bovespa). The period of analysis corresponded to the months from January 1995 to December 2010, making a total of 192 observations for each variable. Johansen tests, through the statistics of the trace and of the maximum eigenvalue, indicated the existence of at least one cointegration vector.

Adenoviruses isolated from civilian and military personnel in the city of Rio de Janeiro, Brazil.

Adenovirus are important pathogen primarily associated to respiratory infections of children and military personnel, even though it is also associated to cases of conjunctivitis and keratoconjunctivitis. We analyzed respiratory secretion collected from subjects with and without respiratory infection symptoms, being 181 civilians and 221 military subjects. The samples were inoculated in HEp-2 and/or A549 tissue cultures for viral isolation.

VP7 gene polymorphism of serotype G9 rotavirus strains and its impact on G genotype determination by PCR.

Rotaviruses are the single most important etiologic agents of severe diarrhea of infants and young children worldwide. Surveillance of rotavirus serotypes/genotypes (both VP7[G] and VP4[P]) is in progress globally in which polymerase chain reaction (PCR) has been the assay of choice. We investigated polymorphism of the VP7 gene of serotype G9 rotavirus strains and its impact on the determination of VP7 gene genotype by PCR assay.

VP7 gene polymorphism of serotype G9 rotavirus strains and its impact on G genotype determination by PCR.

Rotaviruses are the single most important etiologic agents of severe diarrhea of infants and young children worldwide. Surveillance of rotavirus serotypes/genotypes (both VP7[G] and VP4[P]) is in progress globally in which polymerase chain reaction (PCR) has been the assay of choice. We investigated polymorphism of the VP7 gene of serotype G9 rotavirus strains and its impact on the determination of VP7 gene genotype by PCR assay.

Prevalence of enteric adenoviruses among children with diarrhea in four Brazilian cities.

Background: Enteric adenoviruses are related to child diarrhea and appear to be spread worldwide.

Objectives: The aim of the present study was to determine the prevalence of enteric adenovirus infection among children in four Brazilian cities.

Study Design: stool specimens were collected from children under 5 years of age with acute diarrhea.