New Delhi, March 27 -- Since March 2 when the second wave of coronavirus disease (Covid-19) cases was reported in Delhi and Hyderabad, India has not reported any case of community transmission, but the government is working to control cases of focal outbreaks in some states.

Almost a dozen technical teams from the Centre have been sent to places such as Agra, Jaipur, Pune, Delhi and Bhilwara in past one month to contain localised focal outbreaks.

Focal outbreaks or local clustering of positive cases usually occur when family members, neighbours, friends or colleagues acquire infection from an "imported case", where a person who gets infected abroad but tests positive after arriving in India.

"The local clustering of cases was reported fr...