SARS-CoV-2 detection by nasal strips: a superior tool for surveillance of pediatric populations
Abstract Background Deep throat saliva (DTS) and pooled nasopharyngeal swab and throat swab (NPSTS) are utilized for viral detection. DTS is challenging for children. Swabbing the respiratory mucosa requires trained personnel and may trigger sneezing and coughing, which generate droplets. A reliable, simple and safe sampling method applicable to a wide age range is required for community-based surveillance.Methods We introduced nasal strip as an easy and low-risk collection method. Asymptomatic and symptomatic SARS-CoV-2 infected patients (n = 38) were recruited. Nasal epithelial lining fluid (NELF) (n = 43) strip paired with nasal swab (n = 13) were collected by a healthcare worker to compare with NPSTS (n = 21) or DTS (n =22) collected within 24 hours as reference. All samples were subjected to viral RNA quantitation by real-time PCR targeting the nucleoprotein gene.Results Comparable Ct values were observed between paired nasal strip and nasal swab samples. The agreement between nasal strip samples and NPSTS was 94.44% and 100% for NPSTS positive and negative samples. Higher viral RNA concentration was detected in nasal strips than DTS samples. False-negative results were recorded in six DTS specimens, of which four were from children. Storage at room temperature up to 72 (n = 3) hours did not affect diagnostic yield of nasal strips.Conclusions Nasal strip is a reliable and non-invasive sampling method for SARS-CoV-2 detection, and viral detection remains stable for at least 72 hours. It can be used as an alternative tool for community-based surveillance..
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Preprint| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
bioRxiv.org - (2021) vom: 25. Juni Zur Gesamtaufnahme - year:2021 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
Chan, Renee WY [VerfasserIn] |
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| Links: |
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| doi: |
10.1101/2020.10.28.20220673 |
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| funding: |
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| PPN (Katalog-ID): |
XBI019261276 |
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| 245 | 1 | 0 | |a SARS-CoV-2 detection by nasal strips: a superior tool for surveillance of pediatric populations |
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| 520 | |a Abstract Background Deep throat saliva (DTS) and pooled nasopharyngeal swab and throat swab (NPSTS) are utilized for viral detection. DTS is challenging for children. Swabbing the respiratory mucosa requires trained personnel and may trigger sneezing and coughing, which generate droplets. A reliable, simple and safe sampling method applicable to a wide age range is required for community-based surveillance.Methods We introduced nasal strip as an easy and low-risk collection method. Asymptomatic and symptomatic SARS-CoV-2 infected patients (n = 38) were recruited. Nasal epithelial lining fluid (NELF) (n = 43) strip paired with nasal swab (n = 13) were collected by a healthcare worker to compare with NPSTS (n = 21) or DTS (n =22) collected within 24 hours as reference. All samples were subjected to viral RNA quantitation by real-time PCR targeting the nucleoprotein gene.Results Comparable Ct values were observed between paired nasal strip and nasal swab samples. The agreement between nasal strip samples and NPSTS was 94.44% and 100% for NPSTS positive and negative samples. Higher viral RNA concentration was detected in nasal strips than DTS samples. False-negative results were recorded in six DTS specimens, of which four were from children. Storage at room temperature up to 72 (n = 3) hours did not affect diagnostic yield of nasal strips.Conclusions Nasal strip is a reliable and non-invasive sampling method for SARS-CoV-2 detection, and viral detection remains stable for at least 72 hours. It can be used as an alternative tool for community-based surveillance. | ||
| 700 | 1 | |a Chan, Kate C |e verfasserin |4 aut | |
| 700 | 1 | |a Chan, Kathy YY |e verfasserin |4 aut | |
| 700 | 1 | |a Lui, Grace CY |e verfasserin |4 aut | |
| 700 | 1 | |a Tsun, Joseph GS |e verfasserin |4 aut | |
| 700 | 1 | |a Wong, Rity YK |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Michelle WL |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Maggie HT |e verfasserin |4 aut | |
| 700 | 1 | |a Chan, Paul KS |e verfasserin |4 aut | |
| 700 | 1 | |a Lam, Hugh Simon |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Albert M |e verfasserin |4 aut | |
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