Vol 6: Long-Term Single-Dose Efficacy of a Vesicular Stomatitis Virus-Based Andes Virus Vaccine in Syrian Hamsters.Report as inadecuate



 Vol 6: Long-Term Single-Dose Efficacy of a Vesicular Stomatitis Virus-Based Andes Virus Vaccine in Syrian Hamsters.


Vol 6: Long-Term Single-Dose Efficacy of a Vesicular Stomatitis Virus-Based Andes Virus Vaccine in Syrian Hamsters. - Download this document for free, or read online. Document in PDF available to download.

Download or read this book online for free in PDF: Vol 6: Long-Term Single-Dose Efficacy of a Vesicular Stomatitis Virus-Based Andes Virus Vaccine in Syrian Hamsters.
This article is from Viruses, volume 6.AbstractAndes virus ANDV is highly pathogenic in humans and is the primary etiologic agent of hantavirus cardiopulmonary syndrome HCPS in South America. Case-fatality rates are as high as 50% and there are no approved vaccines or specific therapies for infection. Our laboratory has recently developed a replication-competent recombinant vesicular stomatitis virus VSV-based vaccine that expressed the glycoproteins of Andes virus in place of the native VSV glycoprotein G. This vaccine is highly efficacious in the Syrian hamster model of HCPS when given 28 days before challenge with ANDV, or when given around the time of challenge peri-exposure, and even protects when administered post-exposure. Herein, we sought to test the durability of the immune response to a single dose of this vaccine in Syrian hamsters. This vaccine was efficacious in hamsters challenged intranasally with ANDV 6 months after vaccination p = 0.025, but animals were not significantly protected following 1 year of vaccination p = 0.090. The decrease in protection correlated with a reduction of measurable neutralizing antibody responses, and suggests that a more robust vaccination schedule might be required to provide long-term immunity.



Author: Prescott, Joseph; DeBuysscher, Blair L.; Brown, Kyle S.; Feldmann, Heinz

Source: https://archive.org/







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