Fig. 4From: Comparable detection of nasopharyngeal swabs and induced sputum specimens for viral nucleic acid detection of suspected novel coronavirus (SARS-Cov-2) patients in Fayoum governorate, EgyptLinear correlation between the cycle threshold (CT) value of NPS and induced sputum samples at day 3. Legend: A correlation analysis was done between CT values of NPS and induced sputum samples at day 3, with a significant positive correlation (r = 0.497, p = 0.000)Back to article page