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Top Infectious Disease News of the Week—August 19, 2018


#5: A “Substantial Proportion” of Hospital MRSA Infections Occur Post-Discharge, Study Concludes: Public Health Watch

Methicillin-resistant Staphylococcus aureus (MRSA) is an old enemy.

However, the findings of a study published on August 11 in Clinical Infectious Diseases (CID) suggests infectious disease and public health specialists may need to think about the troubling gram-positive bacteria in a new way. That’s because the team of researchers working with the US Department of Veterans Affairs (VA) and the Veterans Health Administration have found that a “substantial proportion” of hospital-associated MRSA infections actually occur following patient discharge.

“The first step is recognizing that assessments of whether infection control practices have been successful should not be confined to what happens to patients between admission and discharge,” Richard E. Nelson, PhD, research health scientist, IDEAS Center, George E. Wahlen Department of Veterans Affairs Medical Center, and research associate professor, division of epidemiology, University of Utah School of Medicine told Contagion®. “Symptoms from infections that were picked up during a hospital stay may not manifest until days or even weeks later. For this reason, contact precautions, improved hand hygiene efforts, and other infection control strategies designed to prevent transmission in the inpatient setting should have an impact on post-discharge infections as well.”

Read more about hospital MRSA infections.

#4: Brown Dog Tick Causes RMSF Epidemic in Mexico, Could Spread Stateside

A recent molecular study has confirmed the causative agent involved in a large epidemic of Rocky Mountain spotted fever (RMSF) in humans and dogs in Mexicali, in Baja California, Mexico. Because Mexicali is a town adjacent to the border with the United States, investigators now express concern that the epidemic may be spreading stateside.

Dr. Luis Tinoco-Gracia, from the Universidad Autónoma de Baja California, Mexicali, Mexico, and colleagues from the University of California, Davis, USA, published the report in the September 2018 issue of Emerging Infectious Diseases, the monthly peer-reviewed public health journal of the US Centers for Disease Control and Prevention (CDC).
Read more about the RMSF epidemic.

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