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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Sci+Rep 2021 ; 11 (1): 2261 Nephropedia Template TP
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Overcoming limitations in the availability of swabs systems used for SARS-CoV-2 laboratory diagnostics #MMPMID33500503
Nairz M; Bellmann-Weiler R; Ladstatter M; Schullner F; Zimmermann M; Koller AM; Blunder S; Naschberger H; Klotz W; Herold M; Kerndler S; Jeske M; Haschka D; Petzer V; Schroll A; Sonnweber T; Tancevski I; Fritsche G; de Araujo MEG; Stasyk T; Huber LA; Griesmacher A; Theurl I; Weiss G
Sci Rep 2021[Jan]; 11 (1): 2261 PMID33500503show ga
The diagnosis of COVID-19 relies on the direct detection of SARS-CoV-2 RNA in respiratory specimens by RT-PCR. The pandemic spread of the disease caused an imbalance between demand and supply of materials and reagents needed for diagnostic purposes including swab sets. In a comparative effectiveness study, we conducted serial follow-up swabs in hospitalized laboratory-confirmed COVID-19 patients. We assessed the diagnostic performance of an in-house system developed according to recommendations by the US CDC. In a total of 96 serial swabs, we found significant differences in the accuracy of the different swab systems to generate a positive result in SARS-CoV-2 RT-PCR, ranging from around 50 to 80%. Of note, an in-house swab system was superior to most commercially available sets as reflected by significantly lower Ct values of viral genes. Thus, a simple combination of broadly available materials may enable diagnostic laboratories to bypass global limitations in the supply of swab sets.