I've had a go. Obviously I am not a professional epidemiologist, but the below should be useful:


If you want fluid samples and centrifuges, then this is a suitable paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7092803/
This paper  explains the process using genomic sequencing and electron microscopy.: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7045880/
There is also this, which places SARS-CoV-2 in its genetic family: https://nextstrain.org/groups/blab/sars-like-cov
Finally, the SARS-CoV-2 Wikipedia page also contains a lot of background information and further links: https://en.wikipedia.org/wiki/Severe_acute_respiratory_syndrome_coronavirus_2