OBJECTIVE Characterize the role of human parainfluenza virus and its clinical features in Brazilian children under 2 years of age presenting with acute lower respiratory tract infections. METHODS Real-time assays were used to identify strains of human parainfluenza virus and other common respiratory viruses in nasopharyngeal aspirates. One thousand and two children presenting with acute lower...

canine parainfluenza virus (cpiv) is one of the most common organisms isolated from dogs with signs of infectious tracheobronchitis (itb). distribution is apparently worldwide. although cpiv may cause mild clinical infections, clinical diseases is expected to be more severe in dogs co-infected with bordetella bronchiseptica than with any these agents alone. the present study was conducted to de...

A trivalent parainfluenza virus vaccine has been tested in guinea pigs. The parainfluenza 2 virus vaccine component was superior in the magnitude of antibody titers, and in the ability to convert animals serologically after two doses of an undiluted or a 10-fold diluted vaccine. The parainfluenza 1 virus vaccine gave a higher percentage of conversion than parainfluenza 3 virus vaccine after adm...

Canine parainfluenza virus (CPiV) is one of the most common organisms isolated from dogs with signs of infectious tracheobronchitis (ITB). Distribution is apparently worldwide. Although CPiV may cause mild clinical infections, clinical diseases is expected to be more severe in dogs co-infected with bordetella bronchiseptica than with any these agents alone. The present study was conducted to d...

Antibody prevalence against respiratory viruses was noted, as follows: adenovirus (1.3%), influenza A (0.6%), influenza B (12.7%), parainfluenza-1 (22.3%), parainfluenza-2 (2.5%), parainfluenza-3 (18.5%) and respiratory syncytial virus (0.6%). The difference in antibody prevalence between the different virus antigens was statistically significant. High antibody rates to influenza B, parainfluen...

Serologic cross reactions have been demonstrated between members of the parainfluenza subgroup of myxoviruses.7'-Similar antigenic relationships have also been noted between mumps virus and each of the four parainfluenza virus serotyes" and between mumps and Newcastle disease virus.7'8 Furthermore, the DA virus, § a myxovirus recently isolated from human blood, which is serologically indistingu...

Parainfluenza virus type 3 has been isolated from the cerebral spinal fluid (CSF) from six individuals--four children and two adults--over a 10-year period. All had fever, and four had signs of meningitis. All recovered uneventfully, including one child undergoing chemotherapy for medulloblastoma. The clinical presentation of this child who developed parainfluenza virus type 3 meningitis is des...

Myxovirus parainfluenza-3 (SF-4 bovine strain) was first isolated in tissue cultures of embryonic bovine kidney (EBK) cells (Reisinger, Heddleston, and Manthei, J. Am. Vet. Med. Assoc. 135:147, 1959). This agent is antigenically and biologically related to the human HA-1 strain isolated previously by Chanock et al. in monkey kidney cells (Abinanti and Huebner, Virology 8:391, 1959; Abinanti et ...