May 15, 2024 · Powassan virus is spread to people by the bite of an infected tick. Powassan virus disease is rare but is increasing. Initial symptoms include fever, headache, vomiting, and weakness. There are no vaccines to prevent or medicines to treat Powassan virus disease. Reduce your risk by avoiding ticks.

May 15, 2024 · Powassan virus infection can result in febrile illness or neurologic disease, including meningitis or encephalitis. If you think you or a family member might have Powassan virus disease (Powassan), talk with your healthcare provider.

May 15, 2024 · Laboratory diagnosis of Powassan virus infection is generally accomplished by testing of serum or cerebrospinal fluid (CSF) to detect Powassan virus-specific IgM and neutralizing antibodies. Initial serological testing is performed using IgM capture enzyme-linked immunosorbent assay (ELISA).

May 15, 2024 · Powassan virus infection can be asymptomatic or cause a non-specific febrile illness. Neuroinvasive disease can present as aseptic meningitis or encephalitis which can be severe. The incubation period for Powassan virus disease ranges from 1–5 weeks.

May 15, 2024 · Powassan virus disease (Powassan) is caused by a virus primarily spread to people through the bite of infected ticks. Powassan is maintained in the environment between ticks and animals. People do not spread the infection except …

Jun 18, 2024 · Powassan virus disease (Powassan) is a nationally notifiable condition. Cases are reported to CDC by state and territorial health departments using standard case definitions. View the data

May 15, 2024 · There is no specific treatment for Powassan virus disease; clinical management is supportive. Monitor patients with neuroinvasive disease closely for severe complications. Counsel patients about using personal protective measures to prevent tick bites.

May 15, 2024 · Powassan virus disease is caused by a tickborne flavivirus (genus Flavivirus, family Flaviviridae). There are two lineages of Powassan virus, specifically Lineage 1 - Powassan virus and Lineage 2 - deer tick virus. Powassan virus has been identified in North America and isolated locations of Russia.

Jan 14, 2025 · Powassan Virus. Powassan virus is primarily spread by ticks. Learn about areas at risk, the illness it causes, and ways to prevent becoming infected. View All

Powassan virus is spread to people by the bite of an infected tick. There are no vaccines or medicines to prevent Powassan. The best way to prevent Powassan is to protect yourself from tick bites. Use insect repellents; Wear long sleeves and pants; Avoid bushy and wooded areas; Perform thorough tick checks after spending time outdoors