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Bacterial Viruses Make Cheap Easy Vaccines

Date:
March 10, 2003
Source:
American Society For Microbiology
Summary:
Genetically altered bacterial viruses appear to be more effective than naked DNA in eliciting an immune response and could be a new strategy for a next generation of vaccines that are easy to produce and store, say researchers from Moredun Research Institute in the United Kingdom.

BALTIMORE – March 10, 2003 – Genetically altered bacterial viruses appear to be more effective than naked DNA in eliciting an immune response and could be a new strategy for a next generation of vaccines that are easy to produce and store, say researchers from Moredun Research Institute in the United Kingdom.

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"In theory, millions of doses can be grown within a matter of days using simple equipment, media and procedures," says John March, one of lead researchers presenting findings at the American Society for Microbiology's Biodefense Research Meeting.

Bacteriophages are viruses that infect bacteria but not humans. In this particular study, March and his colleagues used a bacteriophage as a vehicle for genes from hepatitis B virus in mice and compared its ability to elicit a protective immune response with a vaccine made of naked DNA. They found that not only could the bacteriophage induce an immune response, the number of bacteriophage they needed was less than 1 percent of the number of pieces of naked DNA required to mount an effective immune response.

Using bacteriophages to deliver vaccine components offers several advantages over vaccination with naked DNA, says March. The DNA is protected inside the protein shell of the virus making it longer lasting and easier to store. In addition, bacteriophages have a large cloning capacity, making large-scale production cheap, easy and extremely rapid – important attributes considering the current bioterrorism threat when sudden demands may be placed on vaccine stocks.

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The American Society for Microbiology (ASM) is the largest single life science society, composed of over 42,000 scientists, teachers, physicians, and health professionals. Its mission is to promote research and training in the microbiological sciences and to assist communication between scientists, policymakers, and the public to improve health, economic well being, and the environment. Further information on the ASM Biodefense Research Meeting can be found online at http://www.asmbiodefense.org .


Story Source:

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


Cite This Page:

American Society For Microbiology. "Bacterial Viruses Make Cheap Easy Vaccines." ScienceDaily. ScienceDaily, 10 March 2003. <www.sciencedaily.com/releases/2003/03/030310064342.htm>.
American Society For Microbiology. (2003, March 10). Bacterial Viruses Make Cheap Easy Vaccines. ScienceDaily. Retrieved December 19, 2014 from www.sciencedaily.com/releases/2003/03/030310064342.htm
American Society For Microbiology. "Bacterial Viruses Make Cheap Easy Vaccines." ScienceDaily. www.sciencedaily.com/releases/2003/03/030310064342.htm (accessed December 19, 2014).

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