Darker shaded areas are where there are more cases. Credit: UK Government Covid Dashboard Map The number of new coronavirus cases in south west Hertfordshire does not appear to be spiralling out of control – but data shows little sign of the virus tailing off either. Hertfordshire recorded just over 1,100 new cases on Monday's government Covid dashboard, with the most cases being reported in Broxbourne (152) followed by St Albans with 143, Welwyn Hatfield (127) Watford (114) Dacorum (112) and Hertsmere (111). The dashboard also shows more than 6,500 Hertfordshire residents have tested positive for Covid since the county went into Tier 4 on December 20. Many of these people will have been infected before Tier 4 was announced, and the coming days’ data will tell us how much of an impact Tier 4 measures have had on bringing levels of the virus down.