COVID-19 is spreading rapidly around the world [1]. At present, the diagnosis of COVID-19
mainly depends on realtime RT-PCR assay of throat swabs [2]. However, the false negative …

Purpose PCR on a nasopharyngeal sample is the reference method for the detection of
SARS-nCoV-2. However, combined throat/nasal sampling as a testing method has several …

Background Since the outbreak of coronavirus disease (COVID-19) in Wuhan in December
2019, by March 10, 2020, a total of 80,932 confirmed cases have been reported in China …

Nasopharyngeal swab is the reference sampling method to detect severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2), as recommended by the World Health Organization …

Introduction: To review the present literature on upper respiratory tract sampling in COVID-
19 and provide recommendations to improve healthcare practices and directions in future …

In this journal, Azzi et al. reported that saliva was a reliable tool to detect SARS-CoV-2. 1 We
prospectively compared the efficacy of PCR detection of SARS-CoV-2 between paired …

Nasopharyngeal (NP), nasal and throat swabs are the most practical specimen sources to
test for upper respiratory pathogens. We compared the sensitivity of NP, nasal and throat …

Background: Widespread testing for severe acute respiratory coronavirus virus 2 (SARS-
CoV-2) is necessary to curb the spread of coronavirus disease 2019 (COVID-19), but testing …

Objectives We performed a study during the early outbreak period of coronavirus disease
2019 (COVID-19) and the seasonal epidemics of other respiratory viral infections in order to …

The study by Lui et al., indicated that an inflammatory immune response is associated with
severe RSV infections in elderly [1, 2]. In children under the age of 5 years respiratory …