Rejecting medical negligence allegations by the parents of two Kollam-based girls, who died of Hepatitis A, Thiruvananthapuram medical college hospital superintendent said the children were given adequate care and the disease was diagnosed as soon as they were hospitalised.Neethu, 15, daughter of Murali from Cherikonam near Kannanalloor, died while undergoing treatment at the medical college hospital on Sunday, while her sister Meenakshi, 19, passed away earlier last Friday. Their brother Ambadi, 10, is presently undergoing treatment at KIMS Hospital.Meanwhile, their father alleged that the hospital didn't provide proper treatment to his daughters, and their deaths were due to medical negligence. Murali alleged that hospital staff shifted Neethu to a ventilator only after Meenakshi's death, but her health had deteriorated by then. Had they been given adequate treatment on time, their lives could have been saved, he added. "Why was such cruelty done? It wouldn't have happened to a rich family.I am poor and no one would have questioned," said Murali.