China and Covid
C hina seems to have got itself into a ‘spot of bother’ with Covid recently, to put it mildly… Unlike the USA and most of Europe, where deaths and hospitalisations in most countries are now on the wane, China is currently in the thick of it, and has experienced a major resurgence of SARS-CoV-2 which has spread from an initial ‘hot spot' in Hong Kong to the Chinese mainland. The epidemic appears to be spreading rapidly across China, despite herculean efforts by the authorities there; early control measures included full lockdowns of large areas and even big industrial hubs such as Shenzen. Shanghai itself has been under full lockdown for the last 2 months, and is only now beginning to see a significant fall in case numbers - this is the major industrial hub of south China and its loss of productivity is likely already to have had serious consequences for China's economy. Why has this happened ? We need to look in detail at the history of SARS-CoV-2 to provide an explanat...