I don't think that's true. I haven't found any evidence, anyway.

Nuns were still dressed, head to foot, in a hide-all habit; as well as providing the Church with teachers and nurses, large numbers of them performed menial tasks as cleaners and laundrywomen, frequently in the service of priests.

[T]he local pigweed hosted microscopic leafhoppers that jumped from the surrounding weeds to the beet fields. The insects spread a virus commonly referred to as curly top.

She wanted to see what the passion pit was all about, but I took her to supper and to South Pacific in Memphis rather than to Dragstrip Girl at our drive-in. Anyway, rumor had it that she'd already been to the passion pit.