id author title date pages extension mime words sentences flesch summary cache txt cord-027498-cfzfgzqi Hattori, Takeshi Older age is associated with sustained detection of SARS-CoV-2 in nasopharyngeal swab samples 2020-06-21 .txt text/plain 841 49 56 Currently, the standard for diagnosis of Severe Acute Respiratory Syndrome-Coronavirus-2 (SARSinfection is a positive result based on a polymerase chain reaction (PCR) test from nasopharyngeal swab samples. Although her clinical symptoms and radiological findings resolved within a few days, PCR results from nasopharyngeal swab samples remained positive for 50 days after the onset. We specifically hypothesized that old age could be a risk for prolonged duration of positive PCR results from nasopharyngeal swab samples. In our analysis, older age is significantly associated with prolonged duration of positive PCR tests from nasopharyngeal swab samples, irrespective of the disease severity and the used of medication ( Figure 1 ). In summary, we demonstrated that old age is significantly associated with prolonged duration of positive PCR results from nasopharyngeal swab samples; this is the case regardless of disease severity. ./cache/cord-027498-cfzfgzqi.txt ./txt/cord-027498-cfzfgzqi.txt