People asked to self-isolate will not be told the name of the person who handed over their information, amid fears of anger and reprisals, it has emerged.
Call handlers for the NHS Test and Trace have been issued with guidance about how to deal with abusive callers, and how to deal with those being given information they do not want to hear.
Health officials said those who are contacted by test and trace will be informed that they have been identified as a “significant contact” of someone who has tested positive for Covid-19.
Although many of those being contacted will already know the identify of this person who has fallen ill, health officials said call handlers would never hand over this information.
Spending more than 15 minutes within two metres of someone, having face-to-face contact of less than one metre for any time, or sharing a car with someone counts as close contact.
Those with possible symptoms of coronavirus are being advised that they may wish to alert close contacts that they are waiting for a test result.
During this time, such contacts are advised to take extra care practicising social distancing and good hygiene, although they are not told to self-isolate.
However, if those with Covid-19 do not tell close contacts that they have received the diagnosis, contact tracers have been told that such information must not be passed on.