Central teams have reported non-adherence of COVID-19 appropriate behaviour in almost all of the 50 most-affected districts in Maharashtra, Chhattisgarh and Punjab, the Union health ministry said, advising the states to more strictly enforce norms to prevent spread of the coronavirus. On the basis of feedback from the teams, the ministry has written to the states highlighting the areas of concern, including sub-optimal containment operations and contact tracing, skewed testing and shortage of health workers. Authorities need to work in these areas, it said. Of the 50 districts most affected by COVID-19, 30 are in Maharashtra, 11 in Chhattisgarh and nine in Punjab, it said.