The second Covid wave having taken the daily surge across the 1 lakh mark in a first in the country, Dr Randeep Guleria -- chief of Delhi's All-India Institute of Medical Sciences -- today underscored the need for mini containment zones, which should work like areas under lockdown. Calling the situation "very worrying", Dr Guleria, who is also a key member of the government's Covid Task Force, told NDTV, "If we can't have a complete lockdown, we need to have containment zones".