Lessons learnt from an outbreak of COVID-19 in a workplace providing an essential service, Thames Valley, England 2020: implications for investigation and control.

Prevention and control of COVID-19 outbreaks at workplaces providing an essential service is challenging. Operational requirements, often compounded by reduced staff availability, impede implementation of more robust control measures. Ongoing assessment of human behavioural factors in the control of COVID-19 outbreaks at workplaces in the post-vaccine era is essential.