Notes
1 For a general account of ‘Virology, Epidemiology, Pathogenesis, and Control of COVID-19’ see Jin et al. (2020) at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7232198/
2 https://www.washingtonpost.com/news/the-fix/wp/2015/02/09/heres-how-many-americans-are-actually-anti-vaxxers/ and https://www.futurity.org/how-many-americans-identify-as-anti-vaxxers-2578842/
3 See eg., the virus taxonomy - 6 realms, 10 kingdoms, 17 phyla, 2 subphyla, 39 classes, 59 orders, 8 suborders, 189 families, 136 subfamilies, 2224 genera, 70 subgenera, 9110 species, https://talk.ictvonline.org/taxonomy/