C. diff Infection Rate May Overtake MRSA

March 22, 2010 -- A new superbug may be sneaking up on hospitals already
struggling to lower infections from another, more well-known
antibiotic-resistant bacterium.
A new study shows rates of infection from the bacterium Clostridium
difficile (C. difficile) are now surpassing those associated with
methicillin-resistant Staphylococcus aureus (MRSA) infections in
community hospitals.
Researchers found that while MRSA infection rates are decreasing thanks to
stepped-up prevention efforts within hospitals, infections caused by C.
difficile have increased each year since 2007.

C. difficile, also known as C. diff, is a multidrug-resistant
bacterium that most often causes diarrhea; in severe cases the infection can
cause a potentially deadly inflammation of the colon. Two antibiotics are now
available to treat the infection, and relapses are common during treatment.
"This is not a nuisance disease," says researcher Daniel Sexton, MD,
director of the Duke Infection Control Outreach Network (DICON), in a news
release. "A small percentage of patients with C. difficile may die,
despite treatment. Also, it is likely that the routine use of
alcohol-containing hand cleansers to prevent infections from MRSA does not
simultaneously prevent infections due to C. difficile." 
 
Until recently, C. diff infection was primarily found only among the
elderly and seriously ill. But a
recent report shows the number of C. diff infections among children
has nearly doubled in recent years.
In this study, presented this week at the Fifth Decennial International
Conference on Healthcare-Associated Infections in Atlanta, researchers analyzed
infection rates in 28 community hospitals located in Georgia, North Carolina,
South Carolina, and Virginia during 2008-2009.
During the two-year period, rates of C. diff infection were 25%
higher than those associated with MRSA (847 cases vs. 680 cases).
"Most people continue to think of MRSA as the big, bad superbug. Based on
our data, we can see that this thinking, along with prevention methods, will
need to change," says researcher Becky A. Miller, MD, of Duke University
Medical Center, in the news release."The key is to develop prevention methods
aimed at C. difficile while still maintaining the success we have had
with MRSA."
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