“By taking a rapid test, it means you will know almost immediately if you have coronavirus, so that you can protect your family, friends and community and ultimately break the chain of transmission of the virus.” - Credit: PA/Jane Barlow Key and essential workers who cannot work from home are being encouraged to book regular rapid COVID-19 tests at 'pop-up' sites as part of Hertfordshire’s new community testing scheme. Community testing ‘pop-up’ sites and roving vehicles are now operating across the county and offer free coronavirus tests to those without symptoms, with results available in 45 minutes.