Methicillin-resistant Staphylococcus aureus bloodstream infections in hospitalized patients in Peru

Coralith García, Noemí Hinostroza, Valeria Gordillo, Maria L Inchaustegui, Lizeth Astocondor, Omayra Chincha, Saúl Alejos, Marco Olivera, Digna Bojórquez-Fernández, Fátima Concha-Velasco, Nancy Vásquez, Alex Castaneda-Sabogal, Pedro Sullón, Víctor Fernández, Miguel Villegas-Chiroque, Enrique López, Miguel Hueda-Zavaleta, Ana Vidaurre, César Bocángel, Evelyn BarcoEduardo Paricahua, Marcus Zervos, Jan Jacobs, Fiorella Krapp

Research output: Contribution to journalA1: Web of Science-articlepeer-review


There is a knowledge gap in the epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) causing bloodstream infections (BSIs) in Peru. Through a surveillance study in 13 hospitals of 10 Peruvian regions (2017-2019), we assessed the proportion of MRSA among S. aureus BSIs as well as the molecular typing of the isolates. A total of 166 S. aureus isolates were collected, and 36.1% of them were MRSA. Of note, MRSA isolates with phenotypic and genetic characteristics of the hospital-associated Chilean-Cordobes clone (multidrug-resistant SCCmec I, non-Panton-Valentine leukocidin [PVL] producers) were most commonly found (70%), five isolates with genetic characteristics of community-associated MRSA (CA-MRSA)-SCCmec IV, PVL-producer-(8.3%) were seen in three separate regions. These results demonstrate that hospital-associated MRSA is the most frequent MRSA found in patients with BSIs in Peru. They also show the emergence of S. aureus with genetic characteristics of CA-MRSA. Further studies are needed to evaluate the extension of CA-MRSA dissemination in Peru.

Original languageEnglish
JournalAmerican Journal of Tropical Medicine and Hygiene
Issue number5
Pages (from-to)1118-1121
Number of pages4
Publication statusPublished - 2023


  • Anti-Bacterial Agents/pharmacology
  • Community-Acquired Infections/epidemiology
  • Exotoxins/genetics
  • Humans
  • Leukocidins/genetics
  • Methicillin-Resistant Staphylococcus aureus/genetics
  • Microbial Sensitivity Tests
  • Peru/epidemiology
  • Sepsis
  • Staphylococcal Infections/epidemiology
  • Staphylococcus aureus/genetics


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