Further, Thrissur, Kozhikode and Ernakulam have reported more than 4,000 cases per million (10 lakh) population in the week ending August 25, the Union health secretary pointed out.

Further, Thrissur, Kozhikode and Ernakulam have reported more than 4,000 cases per million (10 lakh) population in the week ending August 25, the Union health secretary pointed out.