The Native Antigen Company is part of LGC Clinical Diagnostics - Learn More

0 Items
Select Page

West Nile Virus

West Nile Virus (WNV) is a cause of neurological disease and death in humans. WNV reached North America in 1999, resulting in a large and dramatic outbreak that continued to spread throughout the USA in the following years. The US WNV outbreak (1999-2010) highlighted the risk posed by importation of vector-borne pathogens outside of their normal range. Since, the virus has spread and is now widely established from Canada to Venezuela.

The Native Antigen Company offers a range of recombinant West Nile virus antigens and highly specific monoclonal antibodies to support research into the infection and assay development.

West Nile Virus Background

West Nile Virus (WNV) is an enveloped, single-stranded RNA virus that belongs to the Flavivirus genus. WNV is a member of the Japanese encephalitis sero-complex, of the family Flaviviridae, which also includes Japanese encephalitis virus, St. Louis encephalitis and Murray Valley encephalitis virus. In nature, West Nile virus is maintained in a cycle between birds and mosquitoes. However, WNV can also be transmitted to incidental hosts such as humans, horses and other mammals by mosquito vectors.

Since the first human WNV infection was identified in 1937, the virus has continued to spread. West Nile virus is now found in many regions of the world including Africa, Europe, West Asia, North and South America. WNV infection is asymptomatic in 80% of cases, but some individuals can develop severe West Nile fever. The symptoms of West Nile fever include fever, headache, nausea and vomiting. The virus has also been associated with neurological complications and fatalities in less than 1% of infected individuals.

Currently, there is no licensed prophylactic vaccine or specific therapeutic treatment for West Nile virus infection in humans. Prevention of WNV infection is through vector control measures and the use of protective clothing to reduce human-to-human transmission.

Reference

  1. Chancey C, et al (2015). The Global Ecology and Epidemiology of West Nile Virus. Biomed Res Int. 376230.

West Nile Virus Antigens

The Native Antigen Company specialises in development and manufacture of native and recombinant viral antigens. Our recombinant antigens are used by pharmaceutical and IVD manufacturers in vaccine research and serology, where proper folding and glycosylation are vital.

We prepare West Nile virus NS1 protein in our proprietary mammalian cell expression system, which generates highly pure NS1 protein in its glycosylated and predominantly hexameric form. Our West Nile virus antigen is ideal for use in immunoassay development and vaccine R&D.

West Nile Virus Antibodies

We have used our recombinant WNV NS1 protein to raise a panel of specific antibodies to WNV NS1 protein, all of which are highly specific and do not cross-react with NS1 proteins from other flaviviruses, including Dengue, Yellow Fever and Japanese Encephalitis viruses

Questions?

Check out our FAQ section for answers to the most frequently asked questions about our website and company.

Monkeypox; 3 months on

It has been 3 months since a new, unusually widespread outbreak of Monkeypox was first identified. What was normally a virus confined to limited infections in the West African continent is becoming a global health concern.   What have we learned about this virus...

COVID-19 Underlines the Need for Universal Vaccines

This article was originally published on Clinical Lab Manager. In recent history, humanity has witnessed numerous emerging viral diseases, including the SARS, MERS, and SARS-2 coronaviruses, as well as HIV, Zika, Ebola, and H1N1 and H3N2 influenza. None have tested...

Tick-Borne Diseases: The Need for Integrated Approaches to Human-Animal Diagnosis

This article has been published in Volume 8, Issue 3 of International Animal Health Journal. Ticks are responsible for a diverse group of neglected, and rapidly expanding diseases, affecting humans, companion animals and livestock. A growing understanding of tick-host...

The Continued Challenges of Flavivirus Serology

This article was originally published on the Science Advisory Board. Flaviviruses are a genus of positive-sense RNA viruses, largely transmitted by mosquito and tick vectors that cause infections, including yellow fever, dengue, the Zika virus, West Nile virus,...

The Role of Serology in Tracking COVID-19 Mutations

This article was originally published on Clinical Lab Products. As SARS-CoV-2 began its global proliferation in early 2020, scientists hastened to investigate its biology, develop diagnostic tests, and design candidate vaccines, marking one of the most...

Get in Touch

We sometimes send exclusive information and offers to our customers - please let us know if you are happy to receive these

6 + 4 =