*record scratch*
Seriously?
A woman who raised two super-morbidly obese daughters, trained them to accept living in filth, gave them zero life skills and as a bonus gave them toxoplasmosis which is picked up from being a filthy dirty beast who handles animal shit (or simply leaves it around their environment because they are too lazy to clean up) and doesn't hand wash properly if at all, essentially, was a nurse? Ugh. Horrifying.
The toxoplasmosis may explain the epic ape-like exceptionalism of the Slaton sisters though. It can cause major congitive issues when passed to a developing fetus. 'Mild to severe mental exceptionalism' is a known symptom of babies born with toxoplasmosis. They're lucky they didn't get the microcephaly at least. But it explains a lot to me about how very fucking 'special needs' those two missing links are.
They should check the hospitals or care facilities where Maw worked and see if there was any spike in infections around those times. Someone who managed to give herself toxoplasmosis, clearly lived in filth, and raised a pair of useless pigs like Amy and Tammy and clearly couldn't be arsed to get them any help to be less fat and exceptional shouldn't be within a mile of any job that requires personal standards of hygiene above and beyond the ordinary, indeed, any kind of standards at all.