Many UK healthcare workers may have had COVID-19 but not known
Loss of smell is a recognised symptom of COVID-19 in the UK. However, it was only added to the official list of symptoms on 18 May, a full month after the WHO recognised it as a symptom.
Before this time, any member of NHS staff reporting a loss of smell — especially in the absence of other symptoms — would not have been advised to self-isolate.
