Table 1. Mycobacteria culture results of specimen processed by PBS and DW
Ann Clin Microbiol 2020;23:201-210. Evaluating the Use of Distilled Water for Washing Sodium Hydroxide in Mycobacterial Culture Download table Washing solution No. of specimen No. (%) of positive culture for No. (%) of contamination* All MTBC NTM PBS 14,532 1,843 (12.7) 684 (4.7) 1,159 (8.0) 907/14,023 (6.5) DW 14,291 2,095 (14.7) 754 (5.3) 1,341 (9.4) 563/13,794 […]
Table 3. Comparison of frequency and Ct and peak value of amplification curves of positive target genes in inconclusive results between COVID-19 cases and non-COVID-19 cases
Ann Clin Microbiol 2020;23:191-199. Causes and Clinical Relevance of Inconclusive SARS-CoV-2 Real-Time Reverse TranscriptionPCR Test Results Download table Target gene COVID-19 cases Non-COVID-19 cases No. (%) No. (%) of Ct ≥ 33 Ct, M ± SD Peak RFU, M ± SD No. (%) No. (%) of Ct ≥ 33 Ct, M ± SD […]
Table 2. Lot number of tested kits and results of retesting of samples in non-COVID-19 patients displaying inconclusive results
Ann Clin Microbiol 2020;23:191-199. Causes and Clinical Relevance of Inconclusive SARS-CoV-2 Real-Time Reverse TranscriptionPCR Test Results Download table Lot No. Period of use No. of inconclusive result / No. of tests (%) Result of retest Ct values of E gene* RP4520C12 2020.03.01. – 2020.03.13. 0 / 3944 (0) All negative 19.98 ± 0.45 RP4520C15 2020.03.12. […]
Table 1. Summary of rRT-PCR test producing inconclusive results from 11 COVID-19 patients
Ann Clin Microbiol 2020;23:191-199. Causes and Clinical Relevance of Inconclusive SARS-CoV-2 Real-Time Reverse TranscriptionPCR Test Results Download table Patient Anti-COVID-19 treatment Days from diagnosis to Ct values of the initial inconclusive result Days and number of consecutive test results from initial inconclusive results to negative conversion Admission Initial inconclusive result E RdRp N Days Pos […]
Fig. 2. Trends of Ct values of three target genes when consecutive SARS-CoV-2 rRT-PCR tests were conducted with nasopharyngeal swab samples from two COVID-19 patients. (A) The asymptomatic patient without treatment (patient 3). (B) The patient with severe symptoms under extracorporeal membrane oxygenation and low-dose steroid treatments (patient 4). Red arrows indicated inconclusive results
Ann Clin Microbiol 2020;23:191-199. Causes and Clinical Relevance of Inconclusive SARS-CoV-2 Real-Time Reverse TranscriptionPCR Test Results Download image
Fig. 1. Classification of the inconclusive results according to COVID-19 diagnosis and retest or consecutive test results. Abbreviation: COVID-19, coronavirus disease 19
Ann Clin Microbiol 2020;23:191-199. Causes and Clinical Relevance of Inconclusive SARS-CoV-2 Real-Time Reverse TranscriptionPCR Test Results Download image
Table 3. The number and rates of C. difficile infections by healthcare facility characteristics
Ann Clin Microbiol 2020;23:181-189. The Trend of Clostridioides difficile Infection in Korean Hospitals with the Analysis of Nationwide Sample Cohort Download table Characteristic Cases No. (Infection rate, %) Year 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Total P-value* Location Seoul […]
Table 2. The number and rates of C. difficile infections by the disease severity
Ann Clin Microbiol 2020;23:181-189. The Trend of Clostridioides difficile Infection in Korean Hospitals with the Analysis of Nationwide Sample Cohort Download table Variable Cases No. (Infection rate, %) Year 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Total P-value* CCI 0 […]
Table 1. The number and rates of C. difficile infections by demographic characteristics
Ann Clin Microbiol 2020;23:181-189. The Trend of Clostridioides difficile Infection in Korean Hospitals with the Analysis of Nationwide Sample Cohort Download table Characteristic Cases No. (Infection rate, %) Year 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Total P-value* Sex Male […]
Fig. 2. The trend of C. difficile infection from 2006 to 2015. N, number.
Ann Clin Microbiol 2020;23:181-189. The Trend of Clostridioides difficile Infection in Korean Hospitals with the Analysis of Nationwide Sample Cohort Download image