Get the stories that matter to you sent straight to your inbox with our daily newsletter.A new walk-in coronavirus testing centre solely for people without symptoms of Covid-19 has opened in Dumbarton.Residents who are not showing symptoms are being urged to go along to the Leven Valley Enterprise Centre on Castlehill Road to cut down on asymptomatic spread of the virus throughout West Dunbartonshire.It will operate between 11am and 7pm, Monday to Saturday, and as the Lennox Herald went to press, 39 people had been tested so far at the Dumbarton centre.Each centre works on a drop-in basis, with no appointment necessary, and is specifically for those without symptoms of the virus.Anyone experiencing symptoms, such a new and continuous cough,.