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Prof Julian Peto proposes using universal testing to end the pandemic (“How to ramp up Covid-19 mass testing immediately in the UK”, FT.com, March 31). However, there is a simpler and cheaper way to get us back to work and to get ahead of the virus. This is for the government to mandate the use of appropriate personal protective equipment (PPE) for all — for every man, woman and child living in the UK or arriving at its borders. This simple step, requiring no innovation, might cost £10 per person and so total £660m, a snip compared with the cost of current strategy.