Updated Feb 13, 2021 | 13:25 IST Positivity rate is determined by identifying the total number of Covid positive cases from the total number of tests done. Covid letting go of hold on Hyderabad, positivity rate at 0.4% | Photo Credit: AP Hyderabad: The Covid graph is swiftly falling in the city, after reporting more than 1,000 cases per day last year. Government reports say that Hyderabad’s positivity rate has touched 0.4% now. Positivity rate is determined by identifying the total number of Covid positive cases from the total number of tests done. A positivity rate of below 5% is considered safe, says World Health Organisation standards. If it is below 5% for a period of 15 days, it suggests that the scenario is very stable.