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An alarming trend.(LETTERS)(Letter to the Editor)
The prevalence of methicillin-resistant Staphylococcus aureus (MRSA) and the trend toward widespread, worsening resistance with this particular organism pose a serious challenge to clinicians nationwide ("MRSA Emerging as Cause of Community-Acquired Infections, Studies Show" Dec. 1, 2004, p. 27).
As your article pointed out, the various types of infection associated with MRSA were observed in immunocompetent patients. Kevin Purcell, M.D., of Driscoll Children's Hospital in Corpus Christi, Tex., indicated that the rate of yearly community-acquired MRSA infections climbed dramatically from 9 to 459 cases during 1999-2003--a whopping 51-fold annual increase.
This begs the following question: What are the prevalence and incident rates of MRSA in community-acquired S. aureus infections (confirmed by positive specimen cultures) in the setting of that children's hospital?
Our health center on the Pine Ridge Reservation in South Dakota, which serves the Oglala Sioux tribe almost exclusively, has experienced a high level of MRSA in community-acquired infections.
In 2003, we saw four urine S. aureus isolates, two of which were MRSA; in the same year, we saw 209 nonurine S. aureus isolates (more than 98% from wound infections), 76 (36%) of which were MRSA and 23 (11%) of which were clindamycin resistant.
Fortunately, all MRSA isolates were sensitive to vancomycin and two sulfa drugs tested (rifampin and trimethoprim/sulfamethoxazole). For the first 9 months of 2004, there were five urine S. aureus ...
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...2 groups may be infected by MRSA strains with different rates...temporal definition of CA-MRSA to assess the impact of changing...prospectively identified all MRSA isolates collected at the medical...inpatients and outpatients. S. aureus isolates were identified by gram stain...
- Antimicrobial susceptibility of methicillin-resistant Staphylococcus aureus...
- Magazine article from: South African Medical Journal Marais, E. Aithma, N. Perovic, O. Oosthuysen, W.F. Musenge, E. Duse, A.G. March 1, 2009 700+ words
...antibiotic susceptibility of MRSA isolates in South Africa are...susceptibility profiles of MRSA isolates collected from South...nonduplicated, consecutive MRSA isolates; these were submitted...Committee on Human Research. S. aureus isolates were identified by standard...
- Community-associated methicillin-resistant Staphylococcus aureus isolates...
- Magazine article from: Emerging Infectious Diseases Maree, Cynthia L. Daum, Robert S. Boyle-Vavra, Susan Matayoshi, Kelli Miller, Loren G. February 1, 2007 700+ words
...methicillin-resistant Staphylococcus aureus (MRSA) infections caused by isolates phenotypically...consistent with community-associated (CA)-MRSA strains. To study this trend, we retrospectively examined all HA-MRSA isolates from patients in our institution...
- Clonal comparison of Staphylococcus aureus isolates from healthy pig farmers,...
- Magazine article from: Emerging Infectious Diseases Arman-Lefevre, Laurence Ruimy, Raymond Andremont, Antoine May 1, 2005 700+ words
...roughly the size of a British or American county. Each pig farmer worked on a different pig farm. We also studied 14 S. aureus isolates from the following types of swine infections: cutaneous, for isolates CA-1, CA-2, CA-6, F-9, and F-10...
- Clindamycin-resistant MRSA now spreading.(methicillin-resistant Staphylococcus...
- Magazine article from: Pediatric News Sullivan, Michele G. July 1, 2005 700+ words
...Methicillin resistance in S. aureus isolates acquired in the community...resistant S. aureus (MRSA) since February 2000...infections; 74% were MRSA. In year 1, 71...community-acquired S. aureus isolates were MRSA (551 of 771); in...
- AdvanDx Launches New Tools for Detecting Antibiotic Resistance and Virulence...
- Press release article from: PR Newswire June 12, 2006 700+ words
...detecting PVL-positive MRSA and MSSA isolates...Vancomycin-resistant S. aureus) isolates found thus far in the...lukF-PV genes. MRSA - Methicillin-Resistant...more than 60% of S. aureus isolates are now methicillin...control the spread of MRSA include
- Occurrence of methicilltn-resistant staphylococcus aureus (MRSA) in Belmont...
- Magazine article from: Journal of the Tennessee Academy of Science Myers, Brittany Thomas, Jennifer T. July 1, 2008 700+ words
...aureus (MRSA). While MRSA is common in hospital...increasing concern for MRSA in community settings...occurrence of &. aureus isolates and to establish how...of 24 samples. S. aureus isolates were confirmed by mannitol...method. A total of 10 MRSA colonies were ...
- Preventing nosocomial spread of MRSA is in your hands. (Nursing Pharmacolog).
- Magazine article from: MedSurg Nursing Capriotti, Teri June 1, 2003 700+ words
...ago. The Natural History of MRSA The discovery of penicillin...antibiotics, and the first strain of MRSA was identified in 1961. Since...resistance among nosocomial S. aureus isolates has been increasing appreciably...resistance to other antibiotics. MRSA is resistant to cephalosporins...
