Eurosurveillance | Detection of 2019 novel coronavirus (2019-nCoV) by real-time RT-PCR User butters--77, in the Coronavirus_Ireland subreddit, 15 Oct 2022
EuroSurveillance - Detection of 2019 novel coronavirus (2019-nCoV) by real-time RT-PCR User APTSmith, in the COVID-19 subreddit, 02 Mar 2020