Staph Aureus Rates Of Resistance To Certain Antibiotics Show A Decrease Over Time
TUESDAY, June 13, 2017 -- Staphylococcus aureus infections among U.S. hospital patients have been less resistant to key antibiotics in recent years, a new study finds.
Between 2009 and 2015, researchers tested antibiotic resistance in more than 19,000 S. aureus samples from 42 medical centers nationwide.
"Results showed that S. aureus' rates of resistance to certain antibiotics decreased over time, which isn't often seen," study co-author Dr. Helio Sader said in an American Society for Microbiology news release. Sader is senior director of microbiology and surveillance at JMI Laboratories in North Liberty, Iowa.
S. aureus resistance to other antibiotics, such as levofloxacin (Levaquin), clindamycin (Cleocin) and erythromycin, also decreased. Resistance to ceftaroline (Teflaro), trimethoprim-sulfanethoxazole (Bactrim), and tetracycline was stable, the researchers said.
The study also found that the antibiotic ceftaroline remained very effective against methicillin-resistant S. aureus (MRSA) and methicillin-susceptible S. aureus during the study period.
The findings were presented recently at the American Society for Microbiology annual meeting, in New Orleans. Research presented at meetings is considered preliminary until published in a peer-reviewed journal.
The U.S. Centers for Disease Control and Prevention has more on antibiotic resistance.
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Posted: June 2017