Eili Klein, of Pioneer grantee Resources For the Future, is lead author of an article in the most recent issue of Emerging Infectious Diseases on hospitalizations and deaths in the U.S. caused by Methicillin-Resistant Staphylococcus Aureus, or MRSA. We asked Eili to comment on the article, its findings and their implications, and he responded:
Recently, it has been impossible to turn on the news without seeing another report about MRSA, an antibiotic-resistant form of a common bacterial infection. It was a feature on CBS’s 60 Minutes, and the subject of countless local news reports that the so-called “superbug” had become rampant in high school locker rooms and caused serious illness and some deaths in elementary school-aged kids.
While news coverage of local events has been extensive, there had been, until recently, a lack of data at the national level to assess the magnitude of the problem and its trend. My colleagues and I at Extending the Cure, a project of Resources for the Future, have just published a study that finds that resistance to drugs traditionally used to treat MRSA has increased significantly.
Based on data compiled from national records of hospitalizations and resistance, our study showed that the number of people hospitalized with MRSA infections more than doubled, from 127,000 to nearly 280,000, between 1999 and 2005. We also found that as many as 17,000 people infected with MRSA die each year.
In addition to this steady growth in the number of infections found among hospital patients, we also found a dramatic increase in the rate of minor skin and soft tissue infections – often looking like pimples or boils - commonly caused by another strain of MRSA that is generally acquired in the community.
This new infection pattern suggests that as the epidemic of drug-resistant infections in hospitals continues unabated, more and more MRSA infections requiring hospitalization also are being transmitted in the community.
Our study is the first to examine recent trends in staph and MRSA infections. In combination with a recent report in the Journal of the American Medical Association that provided a detailed snapshot of MRSA’s impact in 2005, this research suggests that the problem of MRSA should be a national priority.
Of particular interest to us at Extending the Cure is the potential for MRSA to increase the pressure on our waning antibiotic arsenal; treatment of MRSA, after all, requires the use of antibiotics of last resort like vancomycin, and the prospect of MRSA developing resistance to this drug is scary, indeed.
It is for reasons just like this that we at Extending the Cure recommend incentive-based policy solutions that engage all parties with a stake in the continued existence of effective antibiotics. In the specific context of hospitalizations involving antibiotic-resistant infections, policies might include not only increasing surveillance and reporting but also making this information more widely available and linking hospital reimbursements to successful outcomes from infection control programs. Our research on MRSA, its growth and spread and the risk it poses, only reinforces the need to take action.