Navigation Links
Mosquitoes Common in the U.S. Can Transmit Disease-Causing Virus Endemic to Asia

MENLO PARK, Calif., Aug. 22, 2012 /PRNewswire/ -- New research from SRI International finds that mosquitoes commonly found in the United States can be infected with a disease-causing virus from Asia. The research findings are from a recent study that modeled how mosquito-borne infections can become introduced.  Study findings are published in the August 2012 issue of the journal Vector-Borne and Zoonotic Diseases.

In laboratory experiments, researchers demonstrated that mosquitoes from Virginia and Georgia can transmit a virus called Chikungunya (CHIKV), which has infected more than 2 million people in Asia, Africa, and parts of Europe since 2005. The U.S. has never witnessed an outbreak of CHIKV, although a number of infected people have been identified with a CHIKV infection acquired from travel to Asia.

Although CHIKV infection is rarely fatal, patients may suffer persistent complications, such as debilitating arthritis that can last from months to years. Currently, there is no drug to treat CHIKV and no vaccine is available.

"The findings underscore the importance of control measures, such as eliminating mosquito breeding sites, to prevent mosquito-borne viral infections for which there are no cures," said Rajeev Vaidyanathan, Ph.D., associate director of Vector Biology and Zoonotic Diseases in the Biosciences Division of SRI and lead study author.  "We are the first group to look at multiple field populations of mosquitoes with a recent epidemic strain of Chikungunya virus. This is relevant because the populations we sampled are what you would find in the real world."

SRI researchers worked with populations of the Asian tiger mosquito from the southeastern U.S. The tiger mosquito is common in Texas and the Midwest and along the East Coast as far north as New Jersey. Researchers raised mosquito larvae collected from outdoor sites in five counties in Virginia and one in Georgia, until the larvae became adult mosquitoes, and then fed females a "blood meal" with CHIKV. This viral strain is nearly identical to viral strains from India that have infected people arriving in the U.S. with a CHIKV infection.

Vaidyanathan also identified demographic factors that could contribute to a potential transmission of mosquito-borne infections.  Densely populated areas and areas close to major airports would be vulnerable to CHIKV transmission. Another important factor to consider is the number of home foreclosures in an area, because such homes often fall into disrepair and may include flooded basements, clogged rain gutters, and yards full of trash, all which can provide pools of stagnant water ideal for Asian tiger mosquitoes.

This SRI International research was funded predominantly by the Commonwealth of Virginia.

About SRI International

Innovations from SRI International have created new industries, billions of dollars of marketplace value, and lasting benefits to society—touching our lives every day. SRI, a nonprofit research and development institute based in Silicon Valley, brings its innovations to the marketplace through technology licensing, new products, and spin-off ventures. Government and business clients come to SRI for pioneering R&D and solutions in computing and communications, chemistry and materials, education, energy, health and pharmaceuticals, national defense, robotics, sensing, and more.

SOURCE SRI International
Copyright©2012 PR Newswire.
All rights reserved

Related biology technology :

1. Genetically engineered bacteria prevent mosquitoes from transmitting malaria
2. Expert Meeting Discusses Testing of Oxitec Transgenic Mosquitoes in Panama
3. Oxitec Responds to University of Panamas Forum on Transgenic Mosquitoes
4. MAP Pharmaceuticals, Inc. Announces Proposed Public Offering of Common Stock
5. Cord Blood Banking CEO Concedes Kickbacks, Deception Common by 3 Top Cord Blood Banks
6. Palatin Technologies, Inc. Announces Pricing of $35 Million Private Placement of Common Stock and Warrants
7. Atlanta LASIK Surgeon Dr. Ashraf Releases YouTube Videos Featuring Patient Testimonials and Discussion of Common Eye Treatments
8. BioMed Realty Trust Declares Second Quarter 2012 Common Stock And Preferred Stock Dividends
9. Cell Therapeutics Announces Institutional Investor to Purchase $40 Million of Convertible Preferred Stock and Warrants to Purchase Common Stock
10. Novocureā„¢ Certifies Eight Additional Clinical Centers of Excellence to Treat Most Common Brain Tumor with Tumor Treating Fields (TTFields) Therapy
11. Genesis Biopharma Announces Proposed Public Offering of Common Stock and Warrants
Post Your Comments:
(Date:11/25/2015)... , Nov. 25, 2015  Neurocrine Biosciences, Inc. (Nasdaq: ... , President and CEO of Neurocrine Biosciences, will be ... in New York . ... the website approximately 5 minutes prior to the presentation ... of the presentation will be available on the website ...
(Date:11/25/2015)... ... November 25, 2015 , ... Jessica Richman and Zachary Apte, ... their initial angel funding process. Now, they are paying it forward to other ... stage investments in the microbiome space. In this, they join other successful ...
(Date:11/24/2015)... 24, 2015 /CNW/ - iCo Therapeutics ("iCo" or "the ... results for the quarter ended September 30, 2015. ... dollars and presented under International Financial Reporting Standards ... ," said Andrew Rae , President & ... are not only value enriching for this clinical ...
(Date:11/24/2015)... November 24, 2015 --> ... research report "Oligonucleotide Synthesis Market by Product & Services ... Synthesis, Diagnostic, DNA, RNAi), End-User (Research, Pharmaceutical & Biotech, ... MarketsandMarkets, the market is expected to reach USD 1,918.6 ... at a CAGR of 10.1% during the forecast period. ...
Breaking Biology Technology:
(Date:10/27/2015)... Munich, Germany , ... (ASGM) automatically maps data from mobile eye tracking videos ... so that they can be quantitatively analyzed with SMI,s ... Germany , October 28-29, 2015. SMI,s Automated Semantic ... eye tracking videos created with SMI,s Eye Tracking ...
(Date:10/26/2015)... and LAS VEGAS , Oct. 26, ... , an innovator in modern authentication and a founding ... the launch of its latest version of the Nok ... organizations to use standards-based authentication that supports existing and ... Authentication Suite is ideal for organizations deploying customer-facing applications ...
(Date:10/23/2015)... BERLIN and GOLETA, California ... the HFES conference, BIOPAC and SensoMotoric Instruments (SMI) announce ... and eye tracking data captured during interactive real-world tasks ... plug and play integration of their established wearable solutions ... researchers to synchronize gaze behavior captured with SMI ...
Breaking Biology News(10 mins):