Intended for healthcare professionals

Letters Support for self-isolation

Covid-19: Self-isolation is the weakest link in stopping transmission

BMJ 2021; 372 doi: (Published 17 February 2021) Cite this as: BMJ 2021;372:n455
  1. Michael Gill, former regional director of public health
  1. London NW6 4DG, UK
  1. mgilm1{at}

At last the weakest link in the chain of covid-19 transmission—self-isolation—is getting the attention it deserves.1 Cevik and colleagues say that “risk of household transmission within crowded and otherwise inadequate housing intersects with financial barriers to isolation and inability to work from home.” In other words, given the practical difficulties associated with self-isolation in a confined space with shared facilities and several household members, the net effect of self-isolation across …

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