On 24 February the World Health Organisation published the report of its international mission to Wuhan, and advised that countries should: (1) Immediately activate the highest level of national Response Management protocols to ensure the all-of-government and all-of-society approach needed to contain COVID-19 with non-pharmaceutical public health measures; (2) Prioritize active, exhaustive case finding and immediate testing and isolation, painstaking contact tracing and rigorous quarantine of close contacts122 The same report identified the virus as highly contagious, and with a prima facie case fatality rate of 3.8%, rising to over 20% among over 80s.123