--- description: Ticks in the Northeast and around the Great Lakes are carrying the Powassan virus, which can cause encephalitis and meningitis title: A Virus Spread by Ticks Could Be More Dangerous Than Lyme Disease image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production --- * [Health](/section/health/) ## Health Update your preferences in [Account Settings](/account/preferences/) Close * [Infectious Disease](/tag/infectious-disease/) ## Infectious Disease Update your preferences in [Account Settings](/account/preferences/) Close # A Virus Spread by Ticks Could Be More Dangerous Than Lyme Disease ## Video: The Island That Holds the Secret to Long Life [Watch (HLS stream): The Island That Holds the Secret to Long Life](https://cdn.jwplayer.com/manifests/orlnwhNb.m3u8) (7:08)  _Published 2014-05-23. Here's how the people of Ikaria, Greece reach old age_  by [Charlotte Alter](/author/charlotte-alter/)  ## Charlotte Alter Update your preferences in [Account Settings](/account/preferences/) Close Senior Correspondent Apr 10, 2015 3:38 PM CUT  by [Charlotte Alter](/author/charlotte-alter/)  ## Charlotte Alter Update your preferences in [Account Settings](/account/preferences/) Close Senior Correspondent Apr 10, 2015 3:38 PM CUT Don’t just worry about Lyme disease this summer—Powassan virus is also spread by ticks, and doctors say it could be much more dangerous. Ticks in the Northeast and around the Great Lakes are carrying the Powassan virus, which can cause encephalitis and meningitis, leaving about half of survivors with permanent neurological symptoms. According to the [Centers for Disease Control and Prevention, ](http://www.cdc.gov/powassan/symptoms.html "undefined")about 10% of Powassan virus cases are fatal. Doctors told [CBS2 ](http://www.cbsnews.com/news/powassan-virus-spread-by-ticks-could-be-worse-than-lyme-disease/ "undefined")that symptoms of Powassan are similar to Lyme disease, but much more severe, and that the patients can start exhibiting symptoms—including vomiting, fever, confusion and weakness—just minutes after infection. There is no known treatment or cure. Powassan is still much less common than Lyme disease. There were only 12 reported cases in 2013, the highest number since 2004 (there were also 12 cases in 2011), according to the [CDC. ](http://www.cdc.gov/powassan/symptoms.html "undefined") \[h/T [CBS2](http://www.cbsnews.com/news/powassan-virus-spread-by-ticks-could-be-worse-than-lyme-disease/ "undefined")\] ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3817208/powassan-virus-ticks-lyme-disease/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3817208/powassan-virus-ticks-lyme-disease/"},"headline":"A Virus Spread by Ticks Could Be More Dangerous Than Lyme Disease","datePublished":"2015-04-10T15:38:39.000Z","dateModified":"2026-02-22T06:18:27.198Z","description":"Virus could cause permanent neurological damage, and has no cure","url":"https://time.com/3817208/powassan-virus-ticks-lyme-disease/","keywords":["Infectious Disease","health","diseases"],"thumbnailUrl":"","author":[{"@type":"Person","name":"Charlotte Alter","jobTitle":"Senior Correspondent","url":"https://time.com/author/charlotte-alter/"}],"articleSection":"Health","image":[],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/infectious-disease/","name":"Infectious Disease"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/3817208/powassan-virus-ticks-lyme-disease/","name":"A Virus Spread by Ticks Could Be More Dangerous Than Lyme Disease"}}]},{"@context":"https://schema.org","@type":"VideoObject","name":"The Island That Holds the Secret to Long Life","description":"Here's how the people of Ikaria, Greece reach old age","thumbnailUrl":"https://cdn.jwplayer.com/v2/media/orlnwhNb/poster.jpg?width=720","uploadDate":"2014-05-23T20:32:12.000Z","contentUrl":"https://cdn.jwplayer.com/manifests/orlnwhNb.m3u8","embedUrl":"https://time.com/3817208/powassan-virus-ticks-lyme-disease/","duration":"PT7M8S","potentialAction":{"@type":"SeekToAction","target":"https://time.com/3817208/powassan-virus-ticks-lyme-disease/?jw_start={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"}}] ```