A single radial hemolysis assay for parainfluenza-3 virus antibody is described as a simple, sensitive, accurate, and precise alternative to hemagglutination inhibition and serum neutralization tests. A highly significant correlation exists between single radial hemolysis zone areas and hemagglutination inhibition titers of both serum and nasal secretion samples. Antibody conversions equivalent...

The article presents the materials of effect polyvalent inactivated culture vaccine against infectious rhi-notracheitis, viral diarrhea, parainfluenza-3, respiratory syncytial, rotavirus and coronavirus infection cattle "BolsheVak" on immunomorphogenesis in rabbits. It was found that double immunization with an interval 21 days allows for more active development cellular humoral immunity immuni...

OBJECTIVES To compare the incidence of febrile seizures in children hospitalized for influenza A infection with parainfluenza and adenovirus infection and to examine the hypothesis that children hospitalized for influenza A (variant Sydney/H3N2) during the 1998 season in Hong Kong had more frequent and refractory seizures when compared with other respiratory viruses, including the A/Wuhan H3N2 ...

The interaction between silver nanoparticles and viruses is attracting great interest due to the potential antiviral activity of these particles, and is the subject of much research effort in the treatment of infectious diseases. In this work, we demonstrate that silver nanoparticles undergo a size-dependent interaction with herpes simplex virus types 1 and 2 and with human parainfluenza virus ...

H parainfluenza viruses (HPIVs) have been recognized as a cause of respiratory tract infections for many decades. They belong to the Paramyxoviridae family, subfamily Paramyxovirinae, and are classified into 4 serotypes. Serotype 4 can be further subdivided into 2 antigenic subtypes, HPIV-4A and HPIV-4B (1). Although the epidemiology and clinical manifestations of serotypes HPIV-1 to HPIV-3 are...

Sequence comparison of the V/P and F genes of 13 human, canine, porcine and simian isolates of simian virus 5 (SV5) revealed a surprising lack of sequence variation at both the nucleotide and amino acid levels (0-3%), even though the viruses were isolated over 30 years and originated from countries around the world. Furthermore, there were no clear distinguishing amino acid or nucleotide differ...

Background – Little is known about the time trend in mortality rates due to respiratory viruses other than SARS-CoV-2 and seasonal influenza among Brazilian children adolescents. Methods Study outcomes were A, B, syncytial virus, metapneumovirus, rhinovirus, parainfluenza, adenovirus, bocavirus, for age groups <5, 5-9, 10-19 years of age, Brazil, over 2009-2022 period. Secondary data from Mi...

Over a 20-year period in a population of otherwise healthy children, respiratory viruses have been cultured from nasal wash specimens from each child with a clinically significant respiratory illness. Since efforts are underway to develop vaccines for prevention of illness due to parainfluenza virus (PIV) type 3, the epidemiologic characteristics of PIVs were reviewed, and the population size n...

Chemokine mRNA expression by pulmonary leukocytes following infection of BALB/c mice with two strains of respiratory syncytial virus (RSV) and one strain of parainfluenza virus type 3 (PIV-3) was determined. The results suggest that RSV G and/or SH proteins inhibit early MIP-1alpha, MIP-1beta, MIP-2, MCP-1, and IP-10 mRNA expression. TCA-3 mRNA expression was found to be increased during PIV-3 ...