China and South Korea have been successful in bringing down numbers of those affected due to their thorough testing and isolation procedures. Without testing information a nation is, 'blind' to use the description of Doctor David Ho - now leading a team to, hopefully, develop successful treatment. (David Ho identified the behaviour and thus was able to develop drugs to combat the AIDS virus epidemic of the 90s.) Testing is essential and it is disgraceful that our government has opted to ignore information provided by both medical professionals and the successful actions of other countries.
To think that London, or anywhere else for that matter, does not belong to any one demographic