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1.  Intermediate Susceptibility to Ciprofloxacin among Salmonella enterica Serovar Typhi Isolates in Lima, Peru 
Journal of Clinical Microbiology  2014;52(3):968-970.
Thirty-three Salmonella enterica serovar Typhi blood isolates from Lima, Peru (2008 to 2012), were fully susceptible to trimethoprim-sulfamethoxazole, chloramphenicol, ceftriaxone, and tetracycline; 8/33 (24.2%) showed intermediate susceptibility to ciprofloxacin carrying mutations in the quinolone resistance-determining region of the gyrA gene (Ser83-Phe and Asp87-Asn) and in the gyrB gene (Ser464-Phe).
PMCID: PMC3957797  PMID: 24371234
2.  Staphylococcus aureus Causing Tropical Pyomyositis, Amazon Basin, Peru  
Emerging Infectious Diseases  2013;19(1):123-125.
We studied 12 Staphylococcus aureus isolates causing tropical pyomyositis in the Amazon Basin of Peru. All isolates were methicillin-susceptible; 11 carried Panton-Valentine leukocidin–encoding genes, and 5 belonged to multilocus sequence type 25 and possessed an extensive set of enterotoxins. Our findings suggest sequence type 25 is circulating in tropical areas of South America.
PMCID: PMC3557995  PMID: 23260279
tropical pyomyositis; Staphylococcus aureus; S. aureus; Panton-Valentine leukocidin; Peru; Amazon Basin; methicillin-susceptible Staphylococcus aureus; MSSA; community-associated methicillin-resistant S. aureus clones; MRSA; bacteria; staphylococci
3.  Antimicrobial Drug Resistance in Peru 
Emerging Infectious Diseases  2012;18(3):520-521.
PMCID: PMC3309565  PMID: 22377436
antimicrobial esistance; methicillin-resistant Staphylococcus aureus; gram-negative bacteria; bacteria; South America; Peru; MRSA; staphylococci
4.  Knowledge, attitudes and practice survey about antimicrobial resistance and prescribing among physicians in a hospital setting in Lima, Peru 
Misuse of antimicrobials (AMs) and antimicrobial resistance (AMR) are global concerns. The present study evaluated knowledge, attitudes and practices about AMR and AM prescribing among medical doctors in two large public hospitals in Lima, Peru, a middle-income country.
Cross-sectional study using a self-administered questionnaire
A total of 256 participants completed the questionnaire (response rate 82%). Theoretical knowledge was good (mean score of 6 ± 1.3 on 7 questions) in contrast to poor awareness (< 33%) of local AMR rates of key-pathogens. Participants strongly agreed that AMR is a problem worldwide (70%) and in Peru (65%), but less in their own practice (22%). AM overuse was perceived both for the community (96%) and the hospital settings (90%). Patients' pressure to prescribing AMs was considered as contributing to AM overuse in the community (72%) more than in the hospital setting (50%). Confidence among AM prescribing was higher among attending physicians (82%) compared to residents (30%, p < 0.001%). Sources of information considered as very useful/useful included pocket-based AM prescribing guidelines (69%) and internet sources (62%). Fifty seven percent of participants regarded AMs in their hospitals to be of poor quality. Participants requested more AM prescribing educational programs (96%) and local AM guidelines (92%).
This survey revealed topics to address during future AM prescribing interventions such as dissemination of information about local AMR rates, promoting confidence in the quality of locally available AMs, redaction and dissemination of local AM guidelines and addressing the general public, and exploring the possibilities of internet-based training.
PMCID: PMC3231801  PMID: 22085536
Antimicrobial resistance - Antimicrobial use - Knowledge; attitude and practice survey
5.  Asymptomatic Norovirus Infection in Mexican Children 
Journal of Clinical Microbiology  2006;44(8):2997-3000.
Sixty-three children in periurban Mexico City were examined for the occurrence of asymptomatic norovirus (NoV) infection from June to August 1998. NoV was detected in 48 of 161 stool specimens (29.8%), with 31 children (49.2%) having at least one positive stool. Asymptomatic NoV infection occurred commonly during summertime in a Mexican pediatric population.
PMCID: PMC1594604  PMID: 16891526

Results 1-5 (5)