Ag Agencies KARACHI/ISLAMABAD: Schools in Sindh should not be reopened until the coronavirus test positivity ratio drops to 3 per cent, the provincial health minister said on Saturday, as she recommended Karachi and Hyderabad’s educational institutions hold off on reopening due to high positivity rates in the cities. Sindh health minister Azra Pechucho’s comments come a day after Minister for Federal Education Shafqat Mahmood said educational institutions would be reopened across the country beginning tomorrow (Monday). Addressing a press conference here, Pechuho said educational institutes should be reopened only after the positivity rate reaches 3 per cent — which stood at 10 per cent a day earlier in Sindh.