[Quality control results of microbiology of provincial laboratories in China in 2014].

OBJECTIVE

To get a baseline of 32 provincial center for disease control and prevention( CDC) microbiology laboratory in the aspect of quantitative test ability of Staphylococcus aureu, qualitative test ability of diarrheagenic Escherichia coli and unknown intestinal pathogen, and to comprehend the quality of microbiology testing.

METHODS

Two different concentration samples of Staphylococcus aureus I and II were made. Diarrheagenic Escherichia coli and unknown intestinal pathogen samples were transported using the special semi-solid AGAR transport medium, in the form of four pure different serotypes each. The results of Staphylococcus aureu were logarithmic transformed, and evaluated with Z-score method using the average and standard deviation. The reporting results of diarrheagenic Escherichia coli and unknown intestinal pathogen were evaluated as right or wrong, and non-reporting were evaluated as missing.

RESULTS

The satisfaction rate of Staphylococcus aureus was 82. 81%. The accuracy rate of diarrheagenic Escherichia coli was 45. 16%. Of the 32 results of unknown intestinal pathogen, 29 CDCs reported correctSalmonella serotypes, and the accuracy rate was 90. 63%. Combined the three quality control results, 9 CDCs reached the accurate results, with the accuracy rate of 28. 13%.

CONCLUSION

32 provincial CDCs have the identification ability of Salmonella serotyping and qualitative test ability of Staphylococcus aureu, while they need to strength diarrheagenic Escherichia coli identification and serotyping ability.