NEW DELHI : The World Health Organisation (WHO) in its Guidance Note on Public Health Criteria to Adjust Public Health and Social Measures in the Context of COVID-19 has advised comprehensive surveillance of suspected cases.While explaining the concept of 'comprehensive surveillance' and testing of suspect cases, the WHO said that a country needs 140 tests per day per million population.In India, 22 States and Union Territories are reported to be already conducting 140 and more tests per day per million.
The states and UTs are being regularly being advised to increase the testing capacity to match the WHO advised levels of testing.