====== Kit providers ====== https://www.biorxiv.org/content/10.1101/2020.04.17.047118v1.full.pdf https://norgenbiotek.com/ https://www.raybiotech.com/ https://www.thermofisher.com/us/en/home/clinical/public-health/coronavirus-sars-cov-2-research-solutions/sars-cov-2-detection.html https://www.genscript.com/2019-ncov-qrt-pcr-detection-assay.html https://www.takarabio.com/products/covid-19-research/viral-detection-with-qpcr/direct-sars-cov-2-detection-from-saliva