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Express News Service NEW DELHI: The dry swab RT-PCR test, that could cut down testing cost by four times and ramp up testing by 3 fold, does not show variance from standard testing method, said scientists. The CSIR-CCMB team tested the stability of coronavirus samples on dry swabs, showing that the dry swabs can be stored in around 25 degree celsius and transported for up to 24 hours and needs no requirement of cold chain thereby cutting costs. The samples are also stable for up to 3 days at 4 degree Celsius and the test results are comparable to that of the liquid Viral Transport Medium (VTM RNA), used at present. The study on temporal stability of the two strains of SARS-199 CoV-2 at two  different  temperatures indicates that, for shorter distance transportation cold chains can be avoided and the dry swab samples with low viral load also are stable at RT for 24 hours. 

Richa sharmaNews serviceViral transport mediumDry swab rt pcr testDry swab testRt pcr testரிச்சா ஷர்மாசெய்தி சேவைவைரஸ் போக்குவரத்து நடுத்தர