COVID-19 Actuaries Response Group

Face coverings for self-protection

Bulletin 127 | Gordon Woo

When the wearing of face coverings in shops became mandatory in UK on 24 July 2020, there was no specific requirement other than coverage of mouth and nose. The purpose was to protect others. No minimum quality was stipulated; improvised face coverings were acceptable. Moreover, general use of the highest quality medical PPE masks was discouraged, as this would have reduced their availability for frontline healthcare workers.

One year on, supply is no longer a practical issue, but cost is a factor. Following easing of restrictions on 19 July 2021, there is more individual choice over face masks. This choice is not simply binary: to wear a face mask or not in a particular setting. The quality of face mask might be upgraded according to a personal wish for gaining self-protection.

As general usage of face coverings declines, there may be an increased demand for FFP3 masks which offer a degree of self-protection in specific high-risk settings.

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Gordon Woo

Catastrophist - Risk Management Solutions

Dr. Gordon Woo is an architect of the RMS LifeRisks pandemic risk model, which was developed in 2006, at the time of the H5N1 avian flu crisis.

He has contributed widely to the IFoA literature on pandemics, including writing an actuarial perspective on pandemics for the special pandemics edition of the 2015 longevity bulletin, and an article on the age-dependence of the 1918 pandemic.

His IFoA talk on extreme pandemic scenarios in September 2016 included an alternative more transmissible version of MERS, which has similarities with COVID-19.

Trained at Cambridge, MIT and Harvard, he is a visiting professor at UCL, and a visiting professor at NTU, Singapore.

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