Public health bosses are urging people to keep 'Covid diaries' to assist with local contact tracing.
Keeping a note of where you've been and when, as well as who you've been in close contact with could be 'invaluable' to the NHS Test and Trace system.
David Regan, Manchester’s Director of Public Health, says a Covid diary will provide the NHS with an accurate record should a person contract COVID-19.
The message comes after pubs, bars and restaurants reopened across the city for the first time since lockdown on Saturday.
"It’s vital that we come out of lockdown in the safest way possible,” said Mr Regan.
"That means taking every precaution and following the rules on social distancing, hand-washing and face coverings where needed. But, it also means that we all have an even greater part to play with NHS Test and Trace.
"If we all keep a diary - or a note on our phones - of where we have been and at what time, or who we may have come into close contact with, it can give an accurate record if needed.
"This would then help the NHS teams who are either testing for the disease, or, are tracing people who may have been in close range of someone who has a confirmed case.
"We all know it can be difficult to remember the exact details of events from a week ago, but just a simple memo in a diary entry can give the clarity needed to make sure that you and others are all kept safe.
"I'd also like to say a big thank you to all the effort the people of this city have already made to look after one another."
Mr Regan has previously spoken of the likelihood of a second wave of coronavirus cases in Manchester.
Contact tracing has been deemed the most effective method for dealing with future peaks of the virus.
The NHS track and trace system launched in May without the 'track and trace' app - a digital tracing system trialled on the Isle of Wight.
While the national app is yet to go live, Greater Manchester has already launched its own track and trace system to work with in tandem with the national scheme.
If anyone thinks they have symptoms of Coronavirus they should stay at home and book a test immediately on NHS.uk/coronavirus or call 119 if you do not have internet access.
