[detection of complement fixing antibodies against respiratory syncytial virus in inhabitants of the city of são paulo]. 19665994234
seroepidemiological study of respiratory syncytial virus in são paulo state, brazil.transmission of respiratory syncytial virus is thought to be highly seasonal based on reported clinical cases, although transmission resulting in mild disease in all age groups has been little studied. this has been investigated in a seroepidemiological survey using sera from são paulo, brazil. seroprevalence was found to increase rapidly with age, reaching over 90% by three years of age. this is typical of viral infections, which produce life-long immunity following primary infection. one-hundr ...19989624612
clinical patterns and seasonal trends in respiratory syncytial virus hospitalizations in são paulo, brazil.the respiratory viruses are recognized as the most frequent lower respiratory tract pathogens for infants and young children in developed countries but less is known for developing populations. the authors conducted a prospective study to evaluate the occurrence, clinical patterns, and seasonal trends of viral infections among hospitalized children with lower respiratory tract disease (group a). the presence of respiratory viruses in children's nasopharyngeal was assessed at admission in a pedia ...200111452319
respiratory syncytial virus (rsv) in infants hospitalized for acute lower respiratory tract disease: incidence and associated risks.respiratory syncytial virus (rsv) is one of the main causes of acute lower respiratory tract infections worldwide. we examined the incidence and associated risks for rsv infection in infants hospitalized in two university hospitals in the state of são paulo. we made a prospective cohort study involving 152 infants hospitalized for acute lower respiratory tract infections (alrti) in two university hospitals in campinas, são paulo, brazil, between april and september 2004. clinical and epidemiolog ...200617293926
patterns of influenza infections among different risk groups in brazil.influenza virus infections are associated with high morbidity and mortality. influenza activity varies worldwide, and regional detection is influenced by geographic conditions, demographic and patient-risk factors. we assessed influenza activity and patterns of seasonality during three consecutive years (2001-2003) in three risk groups in são paulo city. four-hundred-twelve outpatients with acute respiratory infection were subjected to epidemiological, clinical and laboratory investigations; the ...200717873992
surveillance of eight respiratory viruses in clinical samples of pediatric patients in southeast brazil.detection of the eight most common respiratory viruses: human respiratory syncytial virus (hrsv), influenza virus a and b (ia and ib), parainfluenza viruses 1, 2 and 3 (hpiv1, 2 and 3), adenovirus (ad) and human metapneumovirus (hmpv), in order to establish the etiology of acute respiratory infections (aris) and the epidemiology of these viruses in young children seen at hospital universitário, universidade de são paulo, in são paulo, brazil, during 2003.200717940688
genetic variability in the g protein gene of human respiratory syncytial virus isolated from the campinas metropolitan region, brazil.human respiratory syncytial virus (hrsv) is recognized as the most important viral agent of serious respiratory tract diseases in the pediatric population worldwide. a prospective study for hrsv was conducted in children ageing less than 1 year admitted in two university hospitals in campinas, são paulo, brazil. the aim of the present study was to investigate the genetic variability of both a and b subgroups of hrsv isolated during an epidemic period in the campinas metropolitan region, brazil, ...200818649326
optimization strategy to minimize wastage of palivizumab during the 2008 rsv season in são paulo, brazil.palivizumab is currently recommended to high-risk children as a prophylaxis for respiratory syncytial virus (rsv) infection. however, it is still very expensive for developing countries like brazil. herein, we describe our strategy to minimize wastage of palivizumab during the 2008 rsv season. appointments were fixed for 304 children on 2 days of the week, so that a mean of 19.9 children received palivizumab per day. that allowed remaining volumes of palivizumab vials to be pooled and used for o ...200919203985
viral etiology among the elderly presenting acute respiratory infection during the influenza season.acute respiratory tract infections are the most common illness in all individuals. rhinoviruses have been reported as the etiology of more than 50% of respiratory tract infections worldwide. the study prospectively evaluated 47 elderly individuals from a group of 384 randomly assigned for acute respiratory viral infections (cold or flu) and assessed the occurrence of human rhinovirus (hrv), influenza a and b, respiratory syncytial virus and metapneumovirus (hmpv) in botucatu, state of são paulo, ...201121340401
acute respiratory infection and influenza-like illness viral etiologies in brazilian adults.influenza-like illness (ili) definitions have been used worldwide for influenza surveillance. these different case definitions can vary with regard to sensitivity and predictive values for laboratory confirmed influenza. the literature has indicated the inclusion of other viruses may be the cause of these variable results. the objective of the study was to evaluate ili national sentinel criteria and viral etiologies in adults diagnosed with acute respiratory infection (ari) and/or ili from 2001 ...200818712837
epidemiology and genetic variability of human metapneumovirus during a 4-year-long study in southeastern brazil.epidemiological and molecular characteristics of human metapneumovirus (hmpv) were compared with human respiratory syncytial virus (hrsv) in infants and young children admitted for acute lower respiratory tract infections in a prospective study during four consecutive years in subtropical brazil. genescan polymerase chain assays (genescan rt-pcr) were used to detect hmpv and hrsv in nasopharyngeal aspirates of 1,670 children during january 2003 to december 2006. hmpv and hrsv were detected, resp ...200919319957
incidence and clinical characteristics of the infection by the respiratory syncytial virus in children admitted in santa casa de são paulo hospital.the purpose of this study was to identify the rate of infections due to rsv and other viruses in children. in addition we have analyzed demographic data and clinical characteristics of the rsv-positive patients comparing with patients infected by other respiratory viruses. we also described the seasonality of the rsv occurrence in a hospital in são paulo. children below 5 years old admitted in santa casa de são paulo hospital between february 2005 and september 2006 due to acute respiratory infe ...200819287833
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