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SARS-CoV-2 Detection using Real Time PCR by a Commercial Diagnostic Kit #MMPMID32844799
Roy S; Paul SK; Barman TK; Ahmed S; Haque N; Mazid R; Debnath P; Roy SA
Mymensingh Med J 2020[Jul]; 29 (3): 596-600 PMID32844799show ga
There is a new public health problem around the world with the emergence and spread of 2019 novel corona virus (2019-nCoV). The disease "coronavirus disease 2019" (COVID-19) was caused by SARS-CoV-2. As virus isolates are unavailable so the public laboratories are now facing a challenge for detecting the virus because there is growing evidence of the outbreak which is more widespread than initially thought. We aimed here to discuss about the current diagnostic methodology for detecting the SARS-CoV-2 in health laboratories. Here we use the Novel Corona virus (2019-nCoV) Nucleic Acid Diagnostic Kit (PCR-Fluorescence Probing) which is a real time reverse transcription polymerase chain reaction (rRT-PCR) test. A total of 230 samples in the department of microbiology, Mymensingh Medical College from 1st, April 2020 were selected for this study. Among them 20(8.69%) were positive for SARS CoV-2 and remaining were negative. Among the positive samples 55% could amplify both the ORF 1ab and N genes. The single gene ORF 1ab or N was positive in 15% and 30% cases respectively. The Ct values (<38) of ORF 1ab gene indicated by FAM dye was 92.8% and N gene curve indicated by ROX dye was 100%. The presence of IC gene curve with Ct values (<38) indicated by CY5 dye among the positives were 70% and 100% in negatives. The Ct values (38-40) of IC (CY5) among the positives were 15%. The present study demonstrates the enormous response capacity of the study kit for detecting SARS-CoV-2 within the laboratories in Bangladesh.
Mymensingh+Med+J 2020 ; 29 (3): 596-600
