Of the 30 samples sent to Kolkata's National Institute of Cholera and Enteric Diseases (NICED) in February, four were tested positive and all of them recovered completely a fortnight ago after being treated in the state, Integrated Disease Surveillance Programme (IDSP) nodal officer Dr Pachuau Lalmalsawma told PTI.
However, as a precautionary measure screening of passengers arriving from outside the state was being conducted at the lone Lengpui airport near Aizawl and at Mizoram-Assam border town of Vairengte for people entering the state through NH-54, he said.
