In view of the fact that 4 800 healthcare workers were infected by Covid-19 at the end of June 2020, what (a) is the flagging system that has been put in place by his department to administer the testing of workers and speedy results, (b) is the total number of infected community healthcare workers to date, (c) are the reasons that danger pay has not been implemented noting the dangers that healthcare workers are faced with during the pandemic, especially those in (i) casualty, (ii) emergency and (iii) ICU wards?