Rare Powassan Virus Suspected in Massachusetts Newborn

Why this matters: Powassan virus can cause severe neurological complications and even death. Awareness and prevention are crucial, especially for those living in or visiting areas with high tick populations.

Powassan virus is a rare but potentially serious illness transmitted through the bite of infected deer ticks. Unlike some other tick-borne diseases, Powassan can be transmitted very quickly, within just 15 minutes of a tick bite. The virus can cause brain swelling (encephalitis) and meningitis. While many people infected with Powassan may not experience symptoms, severe cases can lead to long-term neurological problems or even death.

Background:

According to the CDC, between 2004 and 2024, there were 397 Powassan cases nationally, with 50 deaths. Massachusetts ranks second behind Minnesota in the number of cases. As of 2025, there have been 24 cases in seven states, including three in Massachusetts.

Prevention:

To protect yourself and your family from tick bites:

Who This Affects Most: Infants, young children, older adults, and individuals with weakened immune systems are at higher risk for severe Powassan virus disease.

Powassan virus is transmitted through the bite of infected deer ticks. It can be transmitted within 15 minutes of a tick bite.

Symptoms can include fever, headache, vomiting, weakness, confusion, seizures, and memory loss. Severe cases can lead to encephalitis or meningitis.

There is no specific treatment, vaccine, or cure for Powassan virus disease. Treatment focuses on managing symptoms and providing supportive care.

Do you think awareness about Powassan virus is sufficient? What additional measures can be taken to prevent tick-borne illnesses? Share this article with others who need to stay ahead of this trend!