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Phage Therapy May Control Staph Infections In Humans Including MRSA

Date:
August 22, 2007
Source:
American Society for Microbiology
Summary:
Researchers have identified a bacteriophage active against Staphylococcus aureus, including methicillin-resistant strains, in mice and possibly humans. S. aureus is a highly flexible and potentially dangerous pathogen capable of causing skin abscesses, wound infections, endocarditis, osteomyelitis, pneumonia and toxic shock syndrome. Due to the organism's ability to live inside cells, emerging strains are increasingly resistant to antibiotics.

Researchers from Italy have identified a bacteriophage active against Staphylococcus aureus, including methicillin-resistant strains, in mice and possibly humans.

S. aureus is a highly flexible and potentially dangerous pathogen capable of causing skin abscesses, wound infections, endocarditis, osteomyelitis, pneumonia and toxic shock syndrome. Due to the organism's ability to live inside cells, emerging strains are increasingly resistant to antibiotics. Currently, forty to sixty percent of reported nosocomial S. aureus infections in the United States and the United Kingdom are multi-drug resistant with methicillin-resistant S. aureus carrying a significantly higher mortality rate.

A bacteriophage, or phage for short, is a virus that infects bacteria. In the study researchers identified the phage, MSa, and tested its activity against S. aureus in mice. Following simultaneous inoculation with both MSa and lethal and non-lethal doses of S. aureus results showed MSa rescued ninety-seven percent of mice from death and fully cleared mice of non-lethal bacterial infections.

"These results suggest a potential use of the phage for the control of both local and systemic human S. aureus infections," say the researchers.

These findings are reported in the August 2007 issue of the journal Antimicrobial Agents and Chemotherapy.

Reference: R. Capparelli, M. Parlato, G. Borriello, P. Salvatore, D. Iannelli. 2007. Experimental phage therapy against Staphylococcus aureus in mice. Antimicrobial Agents and Chemotherapy, 51. 8: 2765-2773.


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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. "Phage Therapy May Control Staph Infections In Humans Including MRSA." ScienceDaily. ScienceDaily, 22 August 2007. <www.sciencedaily.com/releases/2007/08/070820200004.htm>.
American Society for Microbiology. (2007, August 22). Phage Therapy May Control Staph Infections In Humans Including MRSA. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2007/08/070820200004.htm
American Society for Microbiology. "Phage Therapy May Control Staph Infections In Humans Including MRSA." ScienceDaily. www.sciencedaily.com/releases/2007/08/070820200004.htm (accessed April 24, 2014).

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