Featured Research

from universities, journals, and other organizations

New Vaccine May Protect Against All Four Strains Of Dengue Virus

Date:
July 23, 2008
Source:
American Society for Microbiology
Summary:
Researchers have developed a novel four-component vaccine that protects monkeys against all four strains of dengue virus and may potentially offer protection to the millions of humans at risk worldwide.

Researchers from Maryland and South Carolina have developed a novel four-component vaccine that protects monkeys against all four strains of dengue virus and may potentially offer protection to the millions of humans at risk worldwide.

There are four distinct but similar strains of dengue virus causing more than 100 million annual infections worldwide. Tropical regions are at especially high risk where illness may range from mild symptoms to potentially fatal forms of dengue hemorrhagic fever and dengue shock syndrome. With all four strains of the virus sharing similar clinical presentation, epidemiology, and distribution, development of a vaccine offering multi-faceted protection has become a global health priority.

In the study researchers developed a tetravalent dengue virus vaccine by combining genes and proteins from all four dengue virus types as well as incorporating an adenovirus agent. Following intramuscular vaccination, rhesus macaques showed high antibody levels that neutralized all four of the dengue virus types.

To further test the sustainability of the protective immune response, two separate live-virus challenges were administered at 4 and 24 weeks after the final inoculation. Results showed complete protection against dengue types 1 and 3 and significant protection against types 2 and 4.

"Results reported here demonstrate that the tetravalent dengue vaccine elicited a neutralizing antibody response to all four dengue virus stereotypes and provided both short-term and long-term protection against challenges from each of the four serotypes," say the researchers.


Story Source:

The above story is based on materials provided by American Society for Microbiology. Note: Materials may be edited for content and length.


Journal Reference:

  1. K. Raviprakash, D. Wang, D. Ewing, D.H. Holman, K. Block, J. Woraratanadharm, L. Chen, C. Hayes, J.Y. Dong, K. Porter. A tetravalent dengue virus vaccine based on a complex adenovirus vector provides significant protection in rhesus monkeys against all four serotypes of dengue virus. Journal of Virology, 82. 14: 6927-6934

Cite This Page:

American Society for Microbiology. "New Vaccine May Protect Against All Four Strains Of Dengue Virus." ScienceDaily. ScienceDaily, 23 July 2008. <www.sciencedaily.com/releases/2008/07/080722091648.htm>.
American Society for Microbiology. (2008, July 23). New Vaccine May Protect Against All Four Strains Of Dengue Virus. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2008/07/080722091648.htm
American Society for Microbiology. "New Vaccine May Protect Against All Four Strains Of Dengue Virus." ScienceDaily. www.sciencedaily.com/releases/2008/07/080722091648.htm (accessed July 25, 2014).

Share This




More Plants & Animals News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How to Make Single Serving Smoothies: Howdini Hacks

How to Make Single Serving Smoothies: Howdini Hacks

Howdini (July 24, 2014) Smoothies are a great way to get in lots of healthy ingredients, plus they taste great! Howdini has a trick for making the perfect single-size smoothie that will save you time on cleanup too! All you need is a blender and a mason jar. Video provided by Howdini
Powered by NewsLook.com
Boy Attacked by Shark in Florida

Boy Attacked by Shark in Florida

Reuters - US Online Video (July 24, 2014) An 8-year-old boy is bitten in the leg by a shark while vacationing at a Florida beach. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Goma Cheese Brings Whiff of New Hope to DRC

Goma Cheese Brings Whiff of New Hope to DRC

Reuters - Business Video Online (July 24, 2014) The eastern region of the Democratic Republic of Congo, mainly known for conflict and instability, is an unlikely place for the production of fine cheese. But a farm in the village of Masisi, in North Kivu is slowly transforming perceptions of the area. Known simply as Goma cheese, the Congolese version of Dutch gouda has gained popularity through out the region. Ciara Sutton reports. Video provided by Reuters
Powered by NewsLook.com
Tyrannosaur Pack-Hunting Theory Aided By New Footprints

Tyrannosaur Pack-Hunting Theory Aided By New Footprints

Newsy (July 24, 2014) A new study claims a set of prehistoric T-Rex footprints supports the theory that the giant predators hunted in packs instead of alone. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

    Health News

      Environment News

        Technology News



          Save/Print:
          Share:

          Free Subscriptions


          Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

          Get Social & Mobile


          Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

          Have Feedback?


          Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
          Mobile: iPhone Android Web
          Follow: Facebook Twitter Google+
          Subscribe: RSS Feeds Email Newsletters
          Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins