The administration of Kenyatta National Hospital is isolating and testing patients and healthcare workers who were in the intensive care unit following the death of a six-year-old child from Covid-19.The boy, who had chronic anaemia, succumbed to the disease on Wednesday, raising the number of people who have died of the coronavirus to four.The isolation comes at a time when there are complaints by healthcare workers over the lack of protective gear to handle Covid-19.Dr Amoth stressed the need for social distancing, the directive that people should stay away from groups and from each other