Intended for healthcare professionals

Rapid response to:


Elimination could be the optimal response strategy for covid-19 and other emerging pandemic diseases

BMJ 2020; 371 doi: (Published 22 December 2020) Cite this as: BMJ 2020;371:m4907

Read our latest coverage of the coronavirus outbreak

Rapid Response:

Re: Redefining the Herd

Dear Editor

The WHO has fortuitously re-defined, ’Herd Immunity’ (1).
But should it now also be re-named, ‘Flock Immunity’?


Competing interests: No competing interests

30 December 2020
Janet Menage
GP retired
Wales, UK