label: Anti-Powassan virus antibody positivity
label_lc: anti-powassan virus antibody positivity
description: "The presence of antibodies in the blood circulation that react against a component of a Powassan virus (POW), which is an arbovirus within the family of Flaviviruses primarily found in the Northeastern United States, Canada, and Russia. It is a zoonotic infection transmitted to humans by several tick species and is the only member of the tick-borne flaviviruses endemic to North America."