Very informative. My missus has been on about the viral load since the illness first hit, we're all brainwashed and convinced in our family by now .... mind you, fer years she's loved a good pandemic read. 'The Virus Hunters' from 1997 being her most recommended over the years.... https://www.amazon.co.uk/Virus-Hunters-Dispatches-Frontline/dp/0747534888