Definition: Autism is a general term for a group of complex disorders of brain development. These disorders are characterized, in varying degrees, by difficulties in social interaction, verbal and nonverbal communication and repetitive behaviours. In recent times all autism disorders were merged into one umbrella diagnosis of Autism spectrum disorders (ASD).
Symptoms and Treatment: Autism spectrum disorders (ASD) are characterized by social-interaction difficulties, communication challenges and a tendency to engage in repetitive behaviors. However, symptoms and their severity vary widely across these three core areas. Taken together, they may result in relatively mild challenges for someone on the high functioning end of the autism spectrum. Each child or adult with autism is unique so, each autism intervention plan should be tailored to address specific needs. Intervention can involve behavioral treatments, medicines or both. Many persons with autism have additional medical conditions such as sleep disturbance, seizures and gastrointestinal (GI) distress. Addressing these conditions can improve attention, learning and related behaviors.
Statistics: Disease statistics in Brazil were identified as the mean concentration of mercury in the blood of the 2-month-old subjects exposed to thimerosal was 8.20 ± 4.85 nmol/L, and that of the 6-month-old subjects was 5.15 ± 1.20 nmol/L. In urine testing, 1 of 12 samples from the 2-month-old subjects in the thimerosal-exposed group contained detectable mercury at 3.8 nmol/L, and 3 of 15 samples from the 6-month-old subjects contained detectable mercury at 5.75 ± 1.05 nmol/L. Substantially higher concentrations of mercury were found in all 12 stool samples (81.8 ± 40.3 nmol/L) from the 2-month-old infants exposed to thimerosal and in all 10 stool samples (58.3 ± 21.2 nmol/L) from the 6-month old infants exposed to thimerosal.