A total of 147 NHS Ayrshire & Arran workers have tested positive for coronavirus. Figures released by the health board today reveal that 730 tests have been carried out on the vital key workers in less than a month.And in the 22 days that NHS Ayrshire & Arran have been conducting their own laboratory analysis 131 tests have also been carried out on health board family members/ household contacts.Today's figures take into account staff tests between March 22 and yesterday (April 12).With 390 cases confirmed in the region yesterday, the news means that NHS Ayrshire & Arran workers account for 38 per cent - more than a third - of COVID-19 cases in the county.Last week we reported that staff tests at the health board - up to March 31 - saw 57