Some of the worst affected districts in the state are Malappuram (3,931), Thrissur (3,005), Kozhikode (2,400), Ernakulam (2,397), Palakkad (1,649), Kollam (1,462), Alappuzha (1,461), Kannur (1,179), Thiruvananthapuram (1,101) and Kottayam (1,067).