According to several members of the scientific community even the stupidest studies stay in.
Although complications involving the nervous system occur in fewer than one in 1,000 cases, the long-term effects can be devastating.
Characterized by a history of primary measles infection usually before the age of 2 years, followed by several asymptomatic years (6–15 on average), and then gradual, progressive psychoneurological deterioration, consisting of personality change, seizures, myoclonus, ataxia, photosensitivity, ocular abnormalities, spasticity, and coma.
Here's another viewpoint on SSPE:
An extremely serious complication of measles infection is swelling of the brain. Called encephalitis, this can occur up to several weeks after the basic measles symptoms have resolved. About one out of every thousand patients develops this complication, and about 10-15% of these patients die.
Symptoms include fever, headache, sleepiness, seizures, and coma. Long-term problems following recovery from measles encephalitis may include seizures and mental retardation.
A very rare complication of measles can occur up to 10 years following the initial infection. Called subacute sclerosing panencephalitis, this is a slowly progressing, smoldering swelling and destruction of the entire brain. It is most common among people who had measles infection prior to the age of two years.
Symptoms include changes in personality, decreased intelligence with accompanying school problems, decreased coordination, involuntary jerks and movements of the body.
The disease progresses so that the individual becomes increasingly dependent, ultimately becoming bedridden and unaware of his or her surroundings. Blindness may develop, and the temperature may spike (rise rapidly) and fall unpredictably as the brain structures responsible for temperature regulation are affected. Death is inevitable.
See? Hornig and company just forgot to look for the reasons the MMR vaccine is supposed to be for. If you recall why the vaccinators vaccine for Measles, Wakefield's findings make a lot of sense because the vaccine can cause all the stuff in brown lettering above.
Just over the past few years, MMR vaccine has been recalled in the U.S., Canada, Italy, Jordan, and many others for some unknown reason(s).