This work is a collaboration between BioRISC (the Biosecurity Research Initiative at St Catharine’s College, Cambridge), Conservation Evidence based in the Department of Zoology, University of Cambridge and the Centre for the Study of Existential Risk. It was created by documenting our experience of options, consulting guidance, contacting people working in different countries to explore the range of options and crowd-sourcing ideas through social media. We welcome suggestions for options missed (especially those implemented outside of the UK), innovations for novel options or means of improving existing options. Please contact biorisc@caths.cam.ac.uk. You can also view the list of options on the BioRISC website ([https://covid-19.biorisc.com/][1]) or customise the list yourself using this app we developed ([https://alecchristie888.shinyapps.io/Covid_19_options/][3]). We stress that the listing of an option should not be seen as a recommendation or a suggestion that it is beneficial. Deciding whether to adopt any of these actions involves policy makers and practitioners considering the evidence for the importance of the transmission risk and likely effectiveness, as well as its cost, practicality and fairness. As our starting point we take the guidance from The Centers for Disease Control and Prevention (CDC; [https://www.cdc.gov/][2]). [1]: https://covid-19.biorisc.com/ [2]: https://www.cdc.gov [3]: https://alecchristie888.shinyapps.io/Covid_19_options/