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USA300 Methicillin-Resistant Staphylococcus aureus, United States, 2000-2013.

Carrel M, Perencevich EN, David MZ - Emerging Infect. Dis. (2015)

Bottom Line: Using the biomedical literature as a proxy for USA300 prevalence among genotyped MRSA samples, we found that USA300 was isolated during 2000 in several states, including California, Texas, and midwestern states.The geographic mean center of USA300 MRSA then shifted eastward from 2000 to 2013.Analyzing genotyping studies enabled us to track the emergence of a new, successful MRSA type in space and time across the country.

View Article: PubMed Central - PubMed

ABSTRACT
In the United States, methicillin-resistant Staphylococcus aureus (MRSA) with the USA300 pulsed-field gel electrophoresis type causes most community-associated MRSA infections and is an increasingly common cause of health care-associated MRSA infections. USA300 probably emerged during the early 1990s. To assess the spatiotemporal diffusion of USA300 MRSA and USA100 MRSA throughout the United States, we systematically reviewed 354 articles for data on 33,543 isolates, of which 8,092 were classified as USA300 and 2,595 as USA100. Using the biomedical literature as a proxy for USA300 prevalence among genotyped MRSA samples, we found that USA300 was isolated during 2000 in several states, including California, Texas, and midwestern states. The geographic mean center of USA300 MRSA then shifted eastward from 2000 to 2013. Analyzing genotyping studies enabled us to track the emergence of a new, successful MRSA type in space and time across the country.

No MeSH data available.


Related in: MedlinePlus

The most frequently reported spa types (A) and multilocus sequence types (B) for methicillin-resistant Staphylococcus aureus isolates obtained in 2000–2004, 2005–2009, and 2010–2013, United States.
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Related In: Results  -  Collection


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Figure 1: The most frequently reported spa types (A) and multilocus sequence types (B) for methicillin-resistant Staphylococcus aureus isolates obtained in 2000–2004, 2005–2009, and 2010–2013, United States.

Mentions: For isolates obtained during a reported period spanning multiple years, the mean year of a study was calculated and was used as the year of collection. If an abstracted published study spanned an even number of years, the mean year was rounded up so that all isolates were assigned an integer year of collection. Eighty-two of the 354 analyzed published studies did not provide dates of collection for the reported MRSA isolates or had assigned years of collection before 2000; we discarded these from further analysis (2,289 isolates). Using these year assignments, we found the 5 most common Ridom spa types (27) and the 5 most common STs of isolates obtained during the 2000–2004, 2005–2009, and 2010–2013 periods (Figure 1).


USA300 Methicillin-Resistant Staphylococcus aureus, United States, 2000-2013.

Carrel M, Perencevich EN, David MZ - Emerging Infect. Dis. (2015)

The most frequently reported spa types (A) and multilocus sequence types (B) for methicillin-resistant Staphylococcus aureus isolates obtained in 2000–2004, 2005–2009, and 2010–2013, United States.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4622244&req=5

Figure 1: The most frequently reported spa types (A) and multilocus sequence types (B) for methicillin-resistant Staphylococcus aureus isolates obtained in 2000–2004, 2005–2009, and 2010–2013, United States.
Mentions: For isolates obtained during a reported period spanning multiple years, the mean year of a study was calculated and was used as the year of collection. If an abstracted published study spanned an even number of years, the mean year was rounded up so that all isolates were assigned an integer year of collection. Eighty-two of the 354 analyzed published studies did not provide dates of collection for the reported MRSA isolates or had assigned years of collection before 2000; we discarded these from further analysis (2,289 isolates). Using these year assignments, we found the 5 most common Ridom spa types (27) and the 5 most common STs of isolates obtained during the 2000–2004, 2005–2009, and 2010–2013 periods (Figure 1).

Bottom Line: Using the biomedical literature as a proxy for USA300 prevalence among genotyped MRSA samples, we found that USA300 was isolated during 2000 in several states, including California, Texas, and midwestern states.The geographic mean center of USA300 MRSA then shifted eastward from 2000 to 2013.Analyzing genotyping studies enabled us to track the emergence of a new, successful MRSA type in space and time across the country.

View Article: PubMed Central - PubMed

ABSTRACT
In the United States, methicillin-resistant Staphylococcus aureus (MRSA) with the USA300 pulsed-field gel electrophoresis type causes most community-associated MRSA infections and is an increasingly common cause of health care-associated MRSA infections. USA300 probably emerged during the early 1990s. To assess the spatiotemporal diffusion of USA300 MRSA and USA100 MRSA throughout the United States, we systematically reviewed 354 articles for data on 33,543 isolates, of which 8,092 were classified as USA300 and 2,595 as USA100. Using the biomedical literature as a proxy for USA300 prevalence among genotyped MRSA samples, we found that USA300 was isolated during 2000 in several states, including California, Texas, and midwestern states. The geographic mean center of USA300 MRSA then shifted eastward from 2000 to 2013. Analyzing genotyping studies enabled us to track the emergence of a new, successful MRSA type in space and time across the country.

No MeSH data available.


Related in: MedlinePlus