title: International circumpolar surveillance interlaboratory quality control program for emm typing of Streptococcus pyogenes, 2011-2015.
abstract: In 2011, an interlaboratory quality control (QC) program for emm typing group A streptococci (GAS) was incorporated into existing international circumpolar surveillance QC programs. From 2011 - 2015, 35 GAS isolates were distributed to three laboratories; emm type-level concordance was 100%, while the overall sub-type level concordance was 83%.
authors.affiliation: Arctic Investigations Program, Centers for Disease Control and Prevention, Anchorage, Alaska. Electronic address: krudolph@cdc.gov.
authors.forename: Karen
authors.initials: K
authors.lastname: Rudolph
authors.affiliation: National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada.
authors.forename: Irene
authors.initials: I
authors.lastname: Martin
authors.affiliation: National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada.
authors.forename: Walter
authors.initials: W
authors.lastname: Demczuk
authors.affiliation: Provincial Laboratory for Public Health, Edmonton, AB, Canada.
authors.forename: Jocelyne
authors.initials: J
authors.lastname: Kakulphimp
authors.affiliation: Arctic Investigations Program, Centers for Disease Control and Prevention, Anchorage, Alaska.
authors.forename: Dana
authors.initials: D
authors.lastname: Bruden
authors.affiliation: Arctic Investigations Program, Centers for Disease Control and Prevention, Anchorage, Alaska.
authors.forename: Tammy
authors.initials: T
authors.lastname: Zulz
authors.affiliation: Arctic Investigations Program, Centers for Disease Control and Prevention, Anchorage, Alaska.
authors.forename: Michael
authors.initials: M
authors.lastname: Bruce
mesh_terms: D000942:Antigens, Bacterial / Q000235:genetics*; D001425:Bacterial Outer Membrane Proteins / Q000235:genetics*; D002352:Carrier Proteins / Q000235:genetics*; D059021:Laboratory Proficiency Testing; D058889:Molecular Typing / Q000379:methods* / Q000592:standards*; D011786:Quality Control; D013297:Streptococcus pyogenes / Q000145:classification* / Q000235:genetics*
chemical_list: D000942:Antigens, Bacterial; D001425:Bacterial Outer Membrane Proteins; D002352:Carrier Proteins; C014689:streptococcal M protein
keywords: Quality control; Streptococcus pyogenes; emm typing