Tracing

Coronavirus: contact tracing to stop disease spread  dates  from 1854, when Dr. John Snow traced London’s cholera source to a Soho water pump.  No need to reveal personal details of a worker with the virus, but warn others at risk quickly, so they act suitably.  UK response has gone from Contain to Delay, so national tracing will reduce, but it’s still vital at firm & individual level.  Who was with who?

Guessed the Word?             Series 55 (7/7)            pic: yanceTay