10 cases in several years, and "in all of the cases, the people had some sort of immune-compromising condition, mostly cancer, but also solid organ transplant and HIV. This likely put them at higher risk for infection and severe outcomes."
So yes, use distilled water... but in terms of risk factor, I don't think it's too high.
So yes, use distilled water... but in terms of risk factor, I don't think it's too high.