Director of Public Health Dr T S Selvavinayagam instructed the officials to conduct information, education and communication activities to avoid panic.
Three cases from the neighbouring states - two from Rajasthan and one from Madhya Pradesh - have also been treated in Gujarat hospitals, Health Minister Rushikesh Patel said.
It is worth noting that an epidemic of cerebral fever (CHPV) with febrile symptoms was reported in 1965 in the Chandipura district of Maharashtra state.