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.

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

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

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

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