The Coventry council president has warned "there is no room for complacency" if residents want to avoid a coronavirus surge and local closure.
It comes after Greater Manchester, parts of East Lancashire and West Yorkshire were put under new local blackout rules on Friday after an increase in Covid cases.
City councils were informed last week that there had been a "slight increase" in coronavirus cases in Coventry in the past 10 days, increasing from up to three a day to up to seven.
Regional leaders have now joined forces to clarify that all residents must play a role in reducing the prospect of similar action in the West Midlands.
Coventry City Council chairman George Duggins, along with his counterparts in agencies such as Birmingham, Dudley, Sandwell, Solihull, Walsall and Wolverhampton, has asked people with Covid 19 symptoms, however mild, to give them a free test book.
The seven local authorities also reaffirmed the importance of companies contacting Public Health England when a case is discovered with an employee or customer – either confirmed or suspected.
Cllr Duggins said: "As we have seen at Leicester and now in the north of England, this pandemic is far from over and there is no room for complacency.
"Testing is absolutely necessary if we want to limit the spread of the virus in the West Midlands and save lives and if each one of us can play a role.
“Test rates have dropped in the West Midlands in the past few weeks, and it is important that anyone with the mildest symptoms call 119 or book a test on the NHS website.
"This is in everyone's interest and it's not just about diagnosing individual cases, but understanding how widespread the virus has been. We can identify and act on hotspots to contain and control the virus."
A new mobile test center was opened today (August 3) in the downtown Moat Street car park in Coventry.
It complements the existing regional center in the Ricoh Arena.
To book a free trial, visit www.nhs.uk/coronavirus or dial 119.
Companies are also asked to contact Public Health England on 0344 225 3560 if a case is confirmed or suspected to an employee or customer.
Liz Gaulton, director of public health for the Coventry City Council, added: “Jobs can become sources of outbreak and spread in the future. However, if public health is contacted quickly, when managers find out about the first suspected or confirmed case, the right advice can be given and we can control things quickly.
“In most cases, this also means that the company doesn't have to be closed and things can be controlled. Silence means that the virus spreads and endangers employees and customers. "
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(tagsToTranslate) City Council of Coventry (t) George Duggins (t) NHS (t) Solihull (t) Ricoh Arena