Fifteen traders from Tonj South County of Warrap State turned up for tuberculosis, HIV, Cough and Syphilis medical tests.
Tonj Civil Hospital Public Health Marko Sayid Dichol ordered food, tea and local brew sellers to test in order to carry out business, Don Bosco Radio reported.
Dr Sayid said the traders who tested positive would receive treatment for at least three weeks before resuming work.
He appreciated all those who turned up for the test, guaranteeing their licenses.
Dr Sayid urged all the people of Greater Tonj to come for testing.