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Published on: August 14, 2019
Parainfluenza Virus in the Hospitalized Adult
Elliott Russell1, Michael G Ison1
1Divisions of Infectious Diseases and Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
Insights
Parainfluenza virus (PIV) causes respiratory illness in children and adults. While no approved treatments exist, an inhaled sialidase called DAS181 is in development for PIV infections.
Area of Science:
- Virology
- Respiratory Medicine
Background:
- Parainfluenza virus (PIV) is a significant RNA virus impacting pediatric and immunocompromised individuals.
- Its prevalence in hospitalized adults is increasingly recognized due to advanced diagnostic tools.
Purpose of the Study:
- To highlight the varied clinical presentations of PIV in hospitalized adults.
- To review the current treatment landscape and emerging therapeutic options for PIV infection.
Main Methods:
- Review of clinical data and literature on PIV infections in hospitalized adults.
- Analysis of the efficacy of Ribavirin and the development status of DAS181.
Main Results:
- PIV presents with diverse symptoms, from upper to severe lower respiratory tract infections.
- PIV is identified in 0.2%-11.5% of hospitalized pneumonia cases.
- Ribavirin has shown no significant effect on PIV-related mortality.
Conclusions:
- PIV poses a considerable threat to hospitalized adults, with varied clinical manifestations.
- There is an unmet need for effective PIV treatments.
- DAS181, an inhaled sialidase, represents a promising therapeutic candidate currently under clinical investigation.
Abstract:
Parainfluenza virus (PIV) is a negative-sense single-stranded RNA virus in the Paramyxoviridae family. There are 4 serotypes that follow seasonal patterns with varying rates of infection for each serotype. PIV is an established cause of disease and death in the pediatric and immunocompromised populations, and its impact on the hospitalized adult is becoming more apparent with the increased use of multiplex molecular assays in the clinical setting. The clinical presentation of PIV in hospitalized adults varies widely and includes upper respiratory tract infections, severe lower respiratory tract infections, and exacerbations of underlying disease; 0.2%-11.5% of hospitalized patients with pneumonia have been found to have PIV infection. Currently no licensed treatment is available for PIV infection. Ribavirin has been used, but case studies show no impact on mortality rates. DAS181, an inhaled sialidase, is undergoing clinical development for the treatment of PIV in adults and children.
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