Many sub-clusters will be appeared in many parts of the country since the end of the New Year season;the Association of Public Health Inspectors stated.

They also warn that if health sector lost to control these sub-cluster ; the city of Colombo could become as dangerous as New Delhi.

Currently, sub-clusters have emerged in Colombo, Gampaha, Kurunegala, Trincomalee and Jaffna.

The government has also increased test to identify those infected decided to isolate more infected areas.