Att: DB - give em a call and introduce yourself!2 Jun 2020 14:12
This from a news clip article..
'Speed is really of the essence' with testing and tracing
Dr Adam Kucharski, of the London School of Hygiene and Tropical Medicine, told the House of Lords Science and Technology Committee that “speed is really of the essence” with regards to the test and trace strategy.
“The nature of the evidence we have on transmission is that by the time someone shows symptoms, they have probably been infectious for a day or two already,” he said.
“So that means by the time someone has symptoms, reports as a case, their contacts have potentially already been infected, and those people may themselves become infectious three or four further down, so really very soon after.
“So I think that what that shows is that for these test and trace, these targeted measures to work, speed is really of the essence.
“Because as soon as somebody becomes symptomatic, you have a very short time window before their contacts may become infectious, and then you’ve got another generation of transmission to deal with.”