Assistant Undersecretary of the Ministry of Health for External Health Services Affairs, Dr. Yaqoub Al- Tamar Thursday underlined the necessity of preventing people from being infected with hearing problems and curing them by investing in healthcare services. Speaking to reporters on the sidelines of a festival held at Sheikh Salem Al Ali Al Sabah Center for Speech and Hearing Therapy under the patronage of Minister of Health Dr. Ahmad Al-Awadhi on World Hearing Day, Al-Tamar said the festival aims at enhancing awareness and knowledge on hearing problems, and opportunity of prevention and therapy. Hearing diseases are common as 460 million people all over the world are suffering from them, and this requires shedding light on means of prevention, he said.