What have been the results of the latest surveillance campaign? The ‘Him Suraksha Abhiyan’ was launched on November 24 to screen the population for Covid-19, tuberculosis and leprosy. Other health parameters such as blood sugar level and high blood pressure are also being recorded. By December 8, around 21.5 lakh people, or 29 per cent of the state’s population, had been screened, out of which 688 people showed presumptive signs of leprosy. But none of them was found to be suffering from the disease. The high number of referrals is because the surveillance is being carried out by untrained workers from various departments, and any type of skin lesion or pale skin patch is being recorded as a symptom of leprosy, an official said.