However, in rural areas, an entire village will be a containment zone if there is one case, and if there are multiple cases, then the adjoining village will be taken as a buffer zone, they said.
Non-essential movement in or out of a containment zone gets restricted besides increased vigilance and action by the health department for contact tracing and preventing measures against COVID-19, the officials added.
Gautam Buddh Nagar has so far recorded 470 positive cases of coronavirus, including seven deaths, according to official figures.