1. Rubella - between 1963 - 65 : 40 - 80% (North American)
- visual problems, heart defects
- adults - 25 years old

2. Heredity

- leading cause of deafness throughout this century : 50 - 60%
- occurs in 1/2,000
- 90% of genetic deafness : carried by a recessive gene
- fewer defects

3. Premature Birth

- lack of oxygen and cerebral hemorrhage which can damage the nervous system

4. Complications of Rh Factor

- blood type incompatibility between mother (-) and the child (+)
- 80% - partial hearing loss
- 50% - cerebral palsy

5. Meningitis

- high number at age four - males - 4 to 10 times than in females

---

This webpage is created by Kuala Lumpur Society of the Deaf.

Kuala Lumpur Society of the Deaf, 9B, Komplek Perniagaan Sri Selangor,
Jalan Sang Peng, 55300 Kuala Lumpur, Malaysia
Tel : 03 - 2230690 / Fax : 03 - 2226536