Parents of five-week-old Lily Sisco say their daughter is a “fighter” as they struggle with the potential long-lasting ...

A Boston baby is hospitalized with seizures and brain damage after a tick bite on Martha's Vineyard may have led to Powassan virus, which transmits faster than Lyme disease.

One-month-old baby, Lily Belle Sisco, was infected with a rare tick-borne disease before developing a persistent 102-degree ...

Tiffany Sisco, who declined to be interviewed by ABC News, told Boston ABC station WCVB that she found a tick on her ...

A Massachusetts mom says her infant daughter may be the patient that health officials recently said is under investigation ...