The rooms of COVID-19 patients with symptoms ranging from none to mild were found to be “extensively contaminated. ” This contamination may potentially put healthcare workers at risk. The researchers say careful cleaning is important to reduce this risk. They suggest that dedicated hospital units for COVID-19 patients would be preferable to isolating at home. A new study has revealed that even asymptomatic COVID-19 patients can contaminate their surroundings, potentially spreading the disease to healthcare workers. To read the full story.