... cause of autism has not been fully identified. There are some medications which improve problems associated with autism such as hyperactivity behaviour. Over the years many causes for autism have been suggested. It is evident from ongoing research that the causes of autism involve genetics, biology and neurology in combination with a number of environmental factors, such as infections, antibiotics, vaccinations, allergies and toxins that may all have a vital significance (Yapko, 2003). The physical dysfunction of the brain causes the inability to interact with other human beings and communicate their needs and not, as once thought the result of emotional disturbance caused by inadequate mothering (Yapko, 2003). Viral encephalitis before birth or in early childhood has also been implicated as a cause of autism. Good epidemiological evidence argues that the Measles, Mumps and Rubella (MMR) vaccine is not an environmental risk factor for autism (Nursing Times, 2003). The ...

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