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Yaws: A Tropical disease of Young Children.First sign of the disease is a Skin lump known as the Mother Yaw, often on the leg

Yellow Fever: An acute infectious disease of Central Africa an Northern Regions of South America, caused by a Virus and spread by Moquitoes.An outbreak can affect thousands of people, but on attack gives a person immunity for life

Yoga: Many people in Western countries regard Yoga simply as a form of Relaxation and an aid to Keep the body sypple.But in India - where the principles of Yoga were laid down some 2000 years ago, its followers regard it as a complete Philosophy of Life Experienced practitioners, called Yogis, believe that yoga can improve people's physical and mental health by helping them to become 'At One with the Universe'

info sources:

South African Family Medical Adviser

Family Health Guide & The Baby & Child Health Care Handbook - Dr.Miriam Stoppard