The villagers, who attended the feast at Kantabania village on the occasion of Kartik Purnima last night, complained of vomiting, stomach pain and nausea early today, a district health official said.
They were taken to the local community health centre from where 22 persons, including 15 children, were shifted to the district headquarter hospital, they said.
Balasore chief district medical officer, Bibekananda Das, said the condition of all the patients was stable.