Title
Quality assurance for antimicrobial susceptibility testing of Neisseria gonorrhoeae in Latin American and Caribbean countries, 2013-2015
Date Issued
01 November 2018
Access level
metadata only access
Resource Type
journal article
Author(s)
Sawatzky P.
Martin I.
Galarza P.
Carvallo M.E.T.
Araya Rodriguez P.
Cruz O.M.S.
Hernandez A.L.
Martinez M.F.
Borthagaray G.
Payares D.
Moreno J.E.
Corredor A.H.
Thakur S.D.
Dillon J.A.R.
Publisher(s)
BMJ Publishing Group
Abstract
Objectives A Neisseria gonorrhoeae antimicrobial susceptibility quality control comparison programme was re-established in Latin America and the Caribbean to ensure antimicrobial susceptibility data produced from the region are comparable nationally and internationally. Methods Three panels, consisting of N. gonorrhoeae isolates comprising reference strains and other characterised isolates were sent to 11 participating laboratories between 2013 and 2015. Antimicrobial susceptibilities for these isolates were determined using agar dilution, Etest or disc diffusion methods. Modal minimum inhibitory concentrations (MICs) for each panel isolate/antibiotic combination were calculated. The guidelines of the Clinical and Laboratory Standards Institute were used for interpretations of antimicrobial susceptibility. The agreement of MICs with the modal MICs was determined for each of the participating laboratories as well as for each of the antibiotics tested. Results Five of 11 laboratories that participated in at least one panel had an overall average agreement between participants' MIC results and modal MICs of >90%. For other laboratories, agreements ranged from 60.0% to 82.4%. The proportion of agreement between interpretations for all the antibiotics, except penicillin and tetracycline, was >90%. The percentages of agreement between MIC results and their modes for erythromycin, spectinomycin, cefixime and azithromycin were >90%. Tetracycline, ceftriaxone and ciprofloxacin agreement ranged from 84.5% to 89.1%, while penicillin had 78.8% agreement between MICs and modal MICs. Conclusions The participating laboratories had acceptable results, similar to other international quality assurance programmes. It is important to ensure continuation of the International Gonococcal Antimicrobial Susceptibility Quality Control Comparison Programme to ensure that participants can identify and correct any problems in antimicrobial susceptibility testing for N. gonorrhoeae as they arise and continue to generate reproducible and reliable data.
Start page
479
End page
482
Volume
94
Issue
7
Language
English
OCDE Knowledge area
Ciencias socio biomédicas (planificación familiar, salud sexual, efectos políticos y sociales de la investigación biomédica) Salud pública, Salud ambiental Enfermedades infecciosas Biología celular, Microbiología Epidemiología
Scopus EID
2-s2.0-85049091575
PubMed ID
Source
Sexually Transmitted Infections
ISSN of the container
13684973
Sponsor(s)
Funding this study was partially funded by the University of Saskatchewan (to JrD) and the Saskatchewan Health research Foundation (grant no. 9127, research alliance for the Prevention of infectious Disease (raPiD). Competing interests none declared. Patient consent not required. We acknowledge Onelkis Feliciano and Oderay Guti?rrez, IPK, Cuba, Ricardo A Gianecini, INEI-ANLIS 'Dr. C. Malbr?n', Buenos Aires, Argentina, and Dr Ana Acevedo Universidad de la Republica, Montevideo, Uruguay, for technical assistance in MIC determination and interpretation of results. This study was partially funded by the University of Saskatchewan (to JRD) and the Saskatchewan Health Research Foundation (grant no. 9127, Research Alliance for the Prevention of Infectious Disease (RAPID).
Sources of information: Directorio de Producción Científica Scopus