Autism has no known cause. Given the complexity of the disease, the range of autism spectrum disorders and the fact that no two children with autism are alike, many are likely causes. These may include:
Genetic problems. A number of genes appear to be involved in autism. Some may make a child more vulnerable to disease, while others affect brain development or how the brain cells communicate. Still others may determine the severity of symptoms. Each task in the genes may account for a small number of cases as well, however, the influence of genes may be important. Some genetic problems appear to be hereditary, while others spontaneously.
Environmental factors. Many health problems are caused by genetic and environmental factors, and this is probably the case with autism as well. Researchers are currently examining whether viral infections and air pollutants, for example, plays a role in triggering autism.
No correlation between vaccines and autism
One of the biggest controversies in autism is focused on a possible link between autism and childhood vaccines to some, especially the measles-mumps-rubella (MMR). No reliable studies have shown a link between autism and MMR vaccine. A study published in 1998 theorized that there might be a link has been removed because there is little evidence to support this theory.
Avoid vaccination of children may place the child at risk of contracting serious diseases such as whooping cough (pertussis), measles or mumps.
Genetic problems. A number of genes appear to be involved in autism. Some may make a child more vulnerable to disease, while others affect brain development or how the brain cells communicate. Still others may determine the severity of symptoms. Each task in the genes may account for a small number of cases as well, however, the influence of genes may be important. Some genetic problems appear to be hereditary, while others spontaneously.
Environmental factors. Many health problems are caused by genetic and environmental factors, and this is probably the case with autism as well. Researchers are currently examining whether viral infections and air pollutants, for example, plays a role in triggering autism.
No correlation between vaccines and autism
One of the biggest controversies in autism is focused on a possible link between autism and childhood vaccines to some, especially the measles-mumps-rubella (MMR). No reliable studies have shown a link between autism and MMR vaccine. A study published in 1998 theorized that there might be a link has been removed because there is little evidence to support this theory.
Avoid vaccination of children may place the child at risk of contracting serious diseases such as whooping cough (pertussis), measles or mumps.
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