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Martina Devlin Opinion Covid-19 wave hasn't hit yet but frontline testing could get us ahead of the curve

There is much we don't yet know about Covid-19. But there are some things we do know which could be used as part of the containment drive. Number one, we know it's highly contagious. Number two, we know people in frontline healthcare are more exposed to the virus than others in the population - among those who've contracted it, one in four is a health worker.