Print Page

MRSA Infection Found to be Seasonal

Author: Lifespan
Published: 2011/03/24
Topic: MRSA Infections (Publications Database)

Page Content: Synopsis Introduction Main Item

Synopsis: A new study has found a significant increase in the occurrence of methicillin resistant Staphylococcus aureus (MRSA) infections in summer and autumn months.

Introduction

New study from Rhode Island Hospital shows second half of year more common for MRSA infection.

Main Item

A new study from Rhode Island Hospital has found a significant increase in the occurrence of methicillin-resistant Staphylococcus aureus (MRSA) infections in the summer and autumn months. The increase was more pronounced in the pediatric population than in adults. The study is now published online in advance of print in PloS ONE.

Lead author Leonard Mermel, D.O., Sc.M., medical director of the department of epidemiology and infection control at Rhode Island Hospital, and his colleagues conducted a retrospective 10-year study by examining MRSA isolates submitted to the hospital's microbiology laboratory.

Their findings indicate that for pediatric patients there were approximately 1.85 times as many community-associated (CA) MRSA infections and 2.94 as many hospital-associated (HA) MRSA infections in the third and fourth quarters of the year than in the first two quarters. For adults, there were 1.14 times as many CA-MRSA infections in the second two quarters as in the first two quarters, but no seasonal variation was observed in adult HA-MRSA infections.

The researchers also reviewed published articles over the last 70 years that had any mention of seasonality and Staph aureus infections. They summarized the literature search in two comprehensive tables that reveal an increased incidence of such infections during summer and autumn in many temperate regions of the world and during the warmest months of the year in tropical regions.

The researchers believe that it is the sequence of the third and fourth quarters that is important in demonstrating the peak in MRSA infections rather than just the warmest quarter of the year. Mermel says, "We reviewed meteorological data for Rhode Island during the decade of our study period and found that the second quarter was warmer, on average, than the fourth quarter. We believe that an increased incidence of infection in autumn, the fourth quarter, may reflect a lag between Staphylococcal colonization and subsequent infection."

The researchers note that hydration of the skin is important for microbial growth, and maximum hydration is achieved when high temperatures combine with high relative humidity, which also promotes increased sweat production. Mermel says, "The presence of both factors, heat and humidity, may be critically important in providing the environmental conditions that facilitate heavy grown of S. aureus on the skin."

Mermel, who is also a professor of medicine at The Warren Alpert Medical School of Brown University, says, "We've demonstrated that Staph infections, particularly skin infections in children, follow a seasonal pattern. Until now, this basic observation of one of the most common human infections has been generally unnoticed, minimized or doubted in the medical literature." He concludes, "It is hoped that this study will promote further investigation into the seasonality of S. aureus infections to better understand the biologic basis for this observation."

The principle affiliation of Mermel is Rhode Island Hospital, a member hospital of the Lifespan health system in Rhode Island, and direct financial and infrastructure support for this project was received through the Lifespan Office of Research Administration. The researcher also has an academic appointment at The Warren Alpert Medical School of Brown University and he is also a physician with University Medicine, (www.umfmed.org), a non-profit, multi-specialty medical group practice employing many of the full-time faculty of the department of medicine of the Alpert Medical School. Other researchers involved in the study with Mermel include Jason T. Machan, Ph.D. and Stephen Parenteau, M.S. all of Rhode Island Hospital and Alpert Medical School.

About Rhode Island Hospital - Founded in 1863, Rhode Island Hospital (www.rhodeislandhospital.org) in Providence, RI, is a private, not-for-profit hospital and is the principal teaching hospital of The Warren Alpert Medical School of Brown University. A major trauma center for southeastern New England, the hospital is dedicated to being on the cutting edge of medicine and research. Rhode Island Hospital receives nearly $50 million each year in external research funding. It is a founding member of the Lifespan health system.

Explore Similar Topics

1 - - A new antibiotic, produced by bacteria found on a species of African ant, is very potent against antibiotic-resistant superbugs like MRSA.

2 - - With drug-resistant bacteria on the rise common infections like pneumonia or urinary tract infections are harder to treat with standard antibiotics.

3 - - New England Journal of Medicine report shows a research team has identified a new superbug that caused bloodstream infection in Brazilian patient.


Page Information, Citing and Disclaimer

Disabled World is a comprehensive online resource that provides information and news related to disabilities, assistive technologies, and accessibility issues. Founded in 2004 our website covers a wide range of topics, including disability rights, healthcare, education, employment, and independent living, with the goal of supporting the disability community and their families.

Cite This Page (APA): Lifespan. (2011, March 24). MRSA Infection Found to be Seasonal. Disabled World. Retrieved December 10, 2024 from www.disabled-world.com/health/mrsa/seasonal.php

Permalink: <a href="https://www.disabled-world.com/health/mrsa/seasonal.php">MRSA Infection Found to be Seasonal</a>: A new study has found a significant increase in the occurrence of methicillin resistant Staphylococcus aureus (MRSA) infections in summer and autumn months.

While we strive to provide accurate and up-to-date information, it's important to note that our content is for general informational purposes only. We always recommend consulting qualified healthcare professionals for personalized medical advice. Any 3rd party offering or advertising does not constitute an endorsement.