Preliminary report

Preliminary Report

Month, date, year

Centers for Disease Control and Prevention (CDC)

Mycobacterium tuberculosis and non-tuberculous mycobacteria

Drug Susceptibility Testing Performance Evaluation Program

Subject: Preliminary Report for Panel Shipment Year-XX

Dear Participant:

Attached you will find the preliminary susceptibility testing results for the cultures of

M. tuberculosis sent to you in Month year. These preliminary results were determined by the candidate reference laboratories and may not represent the consensus of all participants. Although the Centers for Disease Control and Prevention (CDC) recommends the radiometric method for routine M. tuberculosis drug susceptibility testing, this preliminary report provides the results used in the conventional (agar proportion) method except in the case of pyrazinamide. Participants should use the equivalent radiometric concentrations to determine their results.

The participant test results for the NTM culture will be provided in the detailed aggregate report of susceptibility results and methods.

This preliminary report will provide you with timely information about the cultures sent to your laboratory. A detailed aggregate report of susceptibility testing results and methods reported by all participants for this panel of four (4) M. tuberculosis isolates and (1) NTM, if applicable, will be emailed before the next scheduled shipment. For additional information or to comment on this report, you may Angela Ragin at

1-888-465-6062 or aragin@cdc.gov or Sandra Neal at 404 498-2238.

We appreciate your support and participation in the M. tuberculosis and NTM Drug Susceptibility Testing Performance Evaluation Program.

Sincerely yours,

Angela Ragin, PhD Project Coordinator NCPDCID/DLS Mailstop G-23, Centers for Disease Control and Prevention Ph: 404 498-2241 Fx: 404 498-2215 email: aragin@cdc.gov

Sandra W. Neal, B.S., MT(ASCP), M.S., P.M.P. Project Manager NCPDCID/DLS Mailstop G-23, Centers for Disease Control and Prevention Ph: 404 498-2238 Fx: 404 498-2215 email: sneal@cdc.gov

Preliminary Report

Susceptibility Testing Results:

M. tuberculosis Isolates

Panel Shipment 2009-XX

STRAIN	DRUG RESISTANCE
K	Isoniazid at 0.2 µg/ml
L	Fully Susceptible
M	Pyrazinamide at 100 µg/ml
N	Streptomycin at 10 µg/ml

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