No, it takes the polio virus to cause polio. The polio virus can be defeated by having a polio vaccination.
Exposure to lead can also cause mental retardation.
Polio virus
Overstudy does not cause mental retardation.
In about 35% of cases, the cause of mental retardation cannot be found.
Copper deficiency in children is associated with growth retardation. Zinc deficiency, Vitamin A deficiency and other nutritional deficiencies can also cause growth retardation.
Yes
The two conditions are not at all related. Autism does not cause mental retardation.
Very rarely oral polio vaccine can cause weakness.
Hyperthyroidism, whooping cough, chickenpox, measles, and Hib disease (a bacterial infection) may cause mental retardation if they are not treated adequately.
Polio myelitis.
No, a virus causes it.