Pathogenic E. coli strains use a multi-step scheme of pathogenesis that is similar to that used by other mucosal pathogens, which consists of colonization of a mucosal site, evasion of host defences, multiplication and host damage.
Research suggests that autism can be reliably diagnosed by age 2, but this study found that fewer than half of children with autism are diagnosed by age 5. Autism is a complex neurodevelopmental disorder that affects as many as 1 in 88 U.S. children, according to the U.S. Centers for Disease Control and Prevention.
ASD Screening for All Children. If your child does have autism, an early diagnosis is better because then your child can start receiving the help he or she needs. This is why the American Academy of Pediatrics (AAP) recommends that all children be screening for ASD at their 18- and 24-month well-child checkups.