KORONADAL CITY - Health officials in Surallah, South Cotabato are investigating whether a table salt triggered poisoning of about six persons Monday, officials said today.The six persons, whose identities were withheld by authorities, arenow under medication at a local health facility in town. Dr. Niel Crespo, Surallah health officer, said no conclusion yet as to what triggered nausea and dizziness of patients. All the victims belonged to one family living in the village of Dajay, Surallan. After we examined them, we advised them to go home,” Dr. Crespo told Radyo Bida dxOM-AM here.