Popis: |
The following protocol describes the reverse transcription quantitative polymerase chain reaction (RT-qPCR) methods that we have used at the University of California, Berkeley in the Nelson Lab and COVID-WEB (covid-web.org) for downstream analysis of extracted wastewater samples for the purpose of SARS-CoV-2 surveillance. We have been successfully using this protocol paired with the Sewage, Salt, Silica, and SARS-CoV-2 (4S) method. We are including multiple assays that we have used throughout this project, although not all of them may be in active use. This method may need to be adapted based on your lab's application, available equipment, and safety requirements. It is intended for use in a BSL2+ lab with extra precautions for processing environmental specimens for SARS-CoV-2 as described in the CDC Interim Laboratory Biosafety Guidelines. Version 1 included the following assays: N1, PMMoV, BCoV, and SOC. Version 2 was amended to include the following assays: crAssphage, Bacteroides HF183 rRNA, and human 18S rRNA. |