NOW in its sixth week, the search for Avonte Oquendo, a 14-year-old boy from Queens with autism, is shining a light on the issue of wandering among people with autism. On Oct. 4, Avonte managed to slip away after lunch from his school in Long Island City — even though he was known to wander during classroom transitions.

While most people associate wandering with elderly sufferers from Alzheimer’s or other types of dementia, a recent study published in the journal Pediatrics found that 49 percent of children with autism were prone to the behavior. Given the prevalence of autism — at one in 88 children, or one in 50 school-age children — it’s clear this is an everyday concern for many thousands of parents.

The day Avonte went missing, a Friday, a 12-year-old boy with autism was in a medically induced coma in Oakland, Calif. According to reports, he had wandered from his mother in a parking lot and entered eastbound traffic on I-580, where he was struck by at least one vehicle. By Sunday, another child with autism had gone missing: 5-year-old Devonte Dye wandered from his grandparents’ home in southeast Missouri. Tragically, he was found the next day, drowned, in a slough near the St. Francis River.

Since 2011, 41 American children with autism have died after wandering, or “bolting,” from caregivers. Water is often a fatal draw for these children. Since April of this year, 14 out of 16 deaths were from drowning.