{"id":752,"date":"2019-02-07T16:19:40","date_gmt":"2019-02-07T21:19:40","guid":{"rendered":"https:\/\/extension.umaine.edu\/ticks\/?page_id=752"},"modified":"2025-04-07T14:11:50","modified_gmt":"2025-04-07T18:11:50","slug":"tick-borne-diseases","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/ticks\/tick-borne-diseases\/","title":{"rendered":"Tick-Borne Diseases"},"content":{"rendered":"<p>Tick-borne diseases have rapidly become a significant public health issue in Maine and throughout much of the United States. The incidence and distribution of these pathogens continues to increase, often resulting in severe health issues for those affected. Of the multiple tick-borne diseases found in the U.S., five are known to occur in Maine, including Lyme disease, anaplasmosis, babesiosis, <em>Borrelia miyamotoi<\/em> disease, and Powassan encephalitis. All five of these diseases can be transmitted by the deer tick (<em>Ixodes scapularis<\/em>).<\/p>\n<p>Early treatment of tick-borne disease is critical. If you suspect you may have a tick-borne illness or have questions about tick-borne disease, consult your doctor immediately. The Tick Lab focuses primarily on ticks themselves and does not offer medical advice.<\/p>\n<hr \/>\n<h3>Lyme Disease<\/h3>\n<p>Lyme disease is an infectious, inflammatory disease caused by the bacteria <em>Borrelia burgdorferi<\/em>.\u00a0 Common signs of Lyme disease include headache, fever, chills, joint and muscle pain, fatigue, and a characteristic expanding rash known as erythema migrans.\u00a0 The symptoms of Lyme disease can be variable, particularly erythema migrans, with less than 50% of reported cases in Maine exhibiting the bullseye-like rash.\u00a0 Long term complications from untreated infections can result in severe arthritis, facial palsies, meningitis, and carditis.\u00a0 Though Lyme disease is readily treatable with oral antibiotics, an estimated 10 to 20% of patients suffer from persistent, non-specific symptoms in a condition recently classified as post-treatment Lyme disease syndrome (PTLDS), the causes of which are unknown.<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 100%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-752 gallery-columns-1 gallery-size-medium'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"169\" src=\"https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-300x169.jpg\" class=\"attachment-medium size-medium\" alt=\"(bulls-eye) rash about 4 inches wide on person&#039;s side\" aria-describedby=\"gallery-1-872\" srcset=\"https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-300x169.jpg 300w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-768x433.jpg 768w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-1024x578.jpg 1024w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-105x59.jpg 105w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-600x338.jpg 600w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-317x179.jpg 317w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-423x239.jpg 423w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-634x358.jpg 634w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-846x477.jpg 846w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-951x536.jpg 951w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-1268x715.jpg 1268w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans-320x180.jpg 320w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Erythema-migrans.jpg 2000w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-872'>\n\t\t\t\tErythema migrans (bulls-eye) rash\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"178\" src=\"https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-300x178.jpg\" class=\"attachment-medium size-medium\" alt=\"Maine Lyme disease cases\" aria-describedby=\"gallery-1-1449\" srcset=\"https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-300x178.jpg 300w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-1024x607.jpg 1024w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-768x455.jpg 768w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-105x62.jpg 105w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-317x188.jpg 317w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-423x251.jpg 423w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-634x376.jpg 634w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-846x502.jpg 846w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-951x564.jpg 951w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases-1268x752.jpg 1268w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2020\/03\/Maine-Lyme-cases.jpg 1511w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-1449'>\n\t\t\t\tMaine Lyme disease cases\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<p>Lyme disease is the most commonly reported vector-borne illness in the United States with approximately 30,000 new cases reported annually.\u00a0 The first documented case of Lyme disease in Maine was identified in 1986 and the incidence has been steadily increasing within the state ever since.<\/p>\n<h4 style=\"text-align: left\"><a href=\"https:\/\/www.cdc.gov\/lyme\/index.html\">More information on Lyme disease<\/a><\/h4>\n<hr \/>\n<h3>Anaplasmosis<\/h3>\n<p>Anaplasmosis is caused by the bacteria <em>Anaplasma phagocytophilum<\/em> and though less commonly reported than Lyme disease, the number of reported cases has been increasing over the past twenty years. This trend has been especially pronounced in Maine over the past 6-8 years, with cases nearly doubling annually from 2012 through 2017. Anaplasmosis is transmitted through the bite of an infected deer tick (<em>Ixodes scapularis<\/em>).<\/p>\n<p>Symptoms of anaplasmosis may include:<\/p>\n<ul>\n<li>Fever, chills<\/li>\n<li>Severe headache<\/li>\n<li>Body aches<\/li>\n<li>Fatigue<\/li>\n<li>Nausea, vomiting, diarrhea, loss of appetite<\/li>\n<\/ul>\n<p>Cases can range from mild to fatal with extreme symptoms including encephalitis and meningitis, however, severe cases are relatively rare.<\/p>\n<h4 style=\"text-align: left\"><a href=\"https:\/\/www.cdc.gov\/anaplasmosis\/index.html\">More information on anaplasmosis<\/a><\/h4>\n<hr \/>\n<h3>Babesiosis<\/h3>\n<p>Babesiosis is caused by a protozoan parasite (<em>Babesia microti<\/em>) that infects red blood cells, potentially causing hemolytic anemia in infected patients. The incidence of babesiosis has fluctuated in the United States with the number of annual cases generally staying between 900 and 1,800. The incidence in Maine has increased slowly over the past ten years, reaching a high of 117 reported cases in 2017.\u00a0 As with Lyme disease and anaplasmosis, babesiosis is transmitted through the bite of an infected deer tick (<em>Ixodes scapularis<\/em>).<\/p>\n<p>Symptoms of babesiosis may include:<\/p>\n<ul>\n<li>Fever<\/li>\n<li>Chills<\/li>\n<li>Sweating<\/li>\n<li>Headache<\/li>\n<li>Body aches<\/li>\n<li>Nausea and\/or loss of appetite<\/li>\n<li>Fatigue<\/li>\n<li>Dark urine, jaundice (associated with anemia)<\/li>\n<\/ul>\n<h4 style=\"text-align: left\"><a href=\"https:\/\/www.cdc.gov\/parasites\/babesiosis\/index.html\">More information on babesiosis<\/a><\/h4>\n<hr \/>\n<h3>Hard Tick Relapsing Fever<\/h3>\n<h4>(Formerly known as <em>Borrelia miyamotoi<\/em> Disease)<\/h4>\n<p><em>Borrelia miyamotoi<\/em> is a spirochetal bacteria that is closely related to the <em>Borrelia <\/em>species that cause tick-borne relapsing fever. It was first\u00a0 identified and isolated from ticks in Japan in 1995 and has since been detected in deer ticks in the eastern United States. Hard tick relapsing fever was first documented in Russia in 2011 and then in the U.S. in 2013.\u00a0 In Maine, cases have been reported since 2016, but have remained in the single digits. Unlike other tick-borne pathogens in Maine, <em>Borrelia miyamotoi<\/em> can be passed from mother to offspring through the eggs, thus making larval ticks a potentially important stage in the transmission cycle.<\/p>\n<p>Symptoms of <em>Borrelia miyamotoi<\/em> disease may include:<\/p>\n<ul>\n<li>Fever<\/li>\n<li>Chills<\/li>\n<li>Fatigue<\/li>\n<li>Severe headache<\/li>\n<li>Muscle\/joint pain<\/li>\n<\/ul>\n<h4 style=\"text-align: left\"><a href=\"https:\/\/www.cdc.gov\/ticks\/tickbornediseases\/borrelia-miyamotoi.html\">More information on <em>Borrelia miyamotoi<\/em> disease<\/a><\/h4>\n<hr \/>\n<h3>Powassan Encephalitis<\/h3>\n<p>Powassan encephalitis is a potentially fatal neuroinvasive disease that was first discovered in Powassan, Ontario in 1958. Subsequent cases have emerged in the United States, though the number of reported cases remains low. \u00a0Cases in Maine were first reported in 2000 and annual numbers have remained in the single digits. Powassan encephalitis is caused by two strains of the same flavivirus. The first strain (Powassan virus) is vectored by the woodchuck tick (<em>Ixodes cookei<\/em>) and to a lesser extent the squirrel tick (<em>Ixodes marxi<\/em>).\u00a0 The second, newly-recognized strain (deer tick virus) is transmitted by the deer tick (<em>Ixodes scapularis<\/em>).<\/p>\n<p>Symptoms of Powassan encephalitis may include:<\/p>\n<ul>\n<li>Fever<\/li>\n<li>Headache<\/li>\n<li>Vomiting<\/li>\n<li>Weakness<\/li>\n<li>Confusion<\/li>\n<li>Loss of coordination<\/li>\n<li>Slurred speech<\/li>\n<li>Seizures<\/li>\n<\/ul>\n<h4 style=\"text-align: left\"><a href=\"https:\/\/www.cdc.gov\/powassan\/index.html\">More information on Powassan encephalitis<\/a><\/h4>\n<hr \/>\n<h3>Alpha-Gal (Red Meat) Allergy<\/h3>\n<p>Alpha-gal allergy is a potentially severe food allergy thought to be caused by the bite of a lone star tick. Though the lone star tick is not commonly found in Maine, cases of alpha-gal allergy have been reported. Alpha-gal (galactose-alpha-1,3-galactose) is a sugar molecule found in red meat that can be transferred to humans through lone star tick feeding. In some people, this triggers an immune system reaction that may produce delayed allergic reactions when they eat red meat. While most food allergies take just minutes to cause a reaction, alpha-gal allergy&#8217;s delayed onset can take three to six hours.<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-2 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 100%;\n\t\t\t}\n\t\t\t#gallery-2 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-2' class='gallery galleryid-752 gallery-columns-1 gallery-size-full'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"1416\" height=\"1014\" src=\"https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged.jpg\" class=\"attachment-full size-full\" alt=\"Lone Star Tick - Adult Female (Engorged)\" aria-describedby=\"gallery-2-815\" srcset=\"https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged.jpg 1416w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-300x215.jpg 300w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-768x550.jpg 768w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-1024x733.jpg 1024w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-105x75.jpg 105w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-317x227.jpg 317w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-423x303.jpg 423w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-634x454.jpg 634w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-846x606.jpg 846w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-951x681.jpg 951w, https:\/\/extension.umaine.edu\/ticks\/wp-content\/uploads\/sites\/42\/2019\/02\/Lone-Star-Tick-Adult-Female-Partially-Engorged-1268x908.jpg 1268w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,1416px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-815'>\n\t\t\t\tLone Star Tick &#8211; Adult Female (Partially Engorged)\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<p>Symptoms of alpha-gal allergy may include:<\/p>\n<ul>\n<li>Hives and\/or severe itching<\/li>\n<li>Swelling of the lips, face, throat, or other body parts<\/li>\n<li>Shortness of breath<\/li>\n<li>Nausea, vomiting, diarrhea, abdominal pain<\/li>\n<li>Sneezing<\/li>\n<li>Headaches<\/li>\n<li>Anaphylaxis<\/li>\n<\/ul>\n<h4 style=\"text-align: left\"><a href=\"https:\/\/www.cdc.gov\/ticks\/alpha-gal\/index.html\">More information on alpha-gal allergy<\/a><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Tick-borne diseases have rapidly become a significant public health issue in Maine and throughout much of the United States. The incidence and distribution of these pathogens continues to increase, often resulting in severe health issues for those affected. Of the multiple tick-borne diseases found in the U.S., five are known to occur in Maine, including [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-752","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tick-Borne Diseases - Cooperative Extension: Tick Lab - University of Maine Cooperative Extension<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/extension.umaine.edu\/ticks\/tick-borne-diseases\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tick-Borne Diseases - Cooperative Extension: Tick Lab - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Tick-borne diseases have rapidly become a significant public health issue in Maine and throughout much of the United States. The incidence and distribution of these pathogens continues to increase, often resulting in severe health issues for those affected. 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Research you can trust.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/extension.umaine.edu\/ticks\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Tick-Borne Diseases - Cooperative Extension: Tick Lab - University of Maine Cooperative Extension","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/extension.umaine.edu\/ticks\/tick-borne-diseases\/","og_locale":"en_US","og_type":"article","og_title":"Tick-Borne Diseases - Cooperative Extension: Tick Lab - University of Maine Cooperative Extension","og_description":"Tick-borne diseases have rapidly become a significant public health issue in Maine and throughout much of the United States. 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