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Mautner L, Baillie CK, Herold HM, Volkwein W, Guertler P, Eberle U, Ackermann N, Sing A, Pavlovic M, Goerlich O, Busch U, Wassill L, Huber I, Baiker A. Rapid point-of-care detection of SARS-CoV-2 using reverse transcription loop-mediated isothermal amplification (RT-LAMP). Virol J 2020; 17:160. [PMID: 33087160 PMCID: PMC7576985 DOI: 10.1186/s12985-020-01435-6] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/14/2020] [Indexed: 12/14/2022] Open
Abstract
Background Fast, reliable and easy to handle methods are required to facilitate urgently needed point-of-care testing (POCT) in the current coronavirus pandemic. Life-threatening severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly spread all over the world, infecting more than 33,500,000 people and killing over 1 million of them as of October 2020. Infected individuals without any symptoms might still transfer the virus to others underlining the extraordinary transmissibility of this new coronavirus. In order to identify early infections effectively, treat patients on time and control disease spreading, rapid, accurate and onsite testing methods are urgently required. Results Here we report the development of a loop-mediated isothermal amplification (LAMP) based method to detect SARS-CoV-2 genes ORF8 and N directly from pharyngeal swab samples. The established reverse transcription LAMP (RT-LAMP) assay detects SARS-CoV-2 directly from pharyngeal swab samples without previous time-consuming and laborious RNA extraction. The assay is sensitive and highly specific for SARS-CoV-2 detection, showing no cross reactivity when tested on 20 other respiratory pathogens. The assay is 12 times faster and 10 times cheaper than routine reverse transcription real-time polymerase chain reaction, depending on the assay used.
Conclusion The fast and easy to handle RT-LAMP assay amplifying specifically the genomic regions ORF8 and N of SARS-CoV-2 is ideally suited for POCT at e.g. railway stations, airports or hospitals. Given the current pandemic situation, rapid, cost efficient and onsite methods like the here presented RT-LAMP assay are urgently needed to contain the viral spread.
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Affiliation(s)
- Lena Mautner
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Christin-Kirsty Baillie
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Heike Marie Herold
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Wolfram Volkwein
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Patrick Guertler
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Ute Eberle
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Nikolaus Ackermann
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Andreas Sing
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Melanie Pavlovic
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Ottmar Goerlich
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Ulrich Busch
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Lars Wassill
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Ingrid Huber
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany
| | - Armin Baiker
- Bavarian Health and Food Safety Authority, Veterinaerstrasse 2, 85764, Oberschleißheim, Germany.
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