A polio scare was triggered in Dumka after 181 children with deformed limbs arrived in the district from Soraiyahat block last night. The children, in the age group of 1 to 12 years, were on their way to Ranchi for check-up at a free medical camp. The camp, organised by Sri Krishna Pranami Sava Dham Trust, a Ranchi-based charitable organisation, will be conducted for two days