{"id":1334,"date":"2025-03-11T22:49:14","date_gmt":"2025-03-12T05:49:14","guid":{"rendered":"https:\/\/www.poultrymed.ca\/main\/?page_id=1334"},"modified":"2025-03-30T07:54:21","modified_gmt":"2025-03-30T14:54:21","slug":"infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks","status":"publish","type":"page","link":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/","title":{"rendered":"Infectious Laryngotracheitis (ILT) in Poultry:  A Persistent Threat to Flocks"},"content":{"rendered":"\n<div class=\"wp-block-group alignfull is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px\">By Dr. Maral Rahmani<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px\">PoultryMed Veterinary Services<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px\">March 2025<\/p>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading alignwide\" id=\"h-introduction\"><strong>Introduction<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Infectious laryngotracheitis (ILT) is a highly contagious respiratory disease affecting chickens and some gallinaceous birds such as pheasants and peafowl (but not turkeys). Caused by a herpesvirus, ILT has been an ongoing concern in poultry-dense regions like the Fraser Valley, BC, where it remains a reportable disease.<\/p>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading\" id=\"h-why-is-ilt-a-major-concern\"><strong><strong><strong>Why is ILT a Major Concern?<\/strong><\/strong><\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">ILT is particularly problematic in areas with high poultry density and multi-age flocks, where both wild-type and vaccine virus strains can spread rapidly. The persistence of the virus is often due to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inconsistent biosecurity practices<\/li>\n\n\n\n<li>Poor communication within the industry<\/li>\n\n\n\n<li>Failure to follow disease control protocols<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Without strict preventive measures, ILT outbreaks can cause significant economic losses, impacting flock health, egg production, and overall farm productivity.<\/p>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading\" id=\"h-transmission\"><strong><strong>Transmission<\/strong><\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">ILT spreads through respiratory secretions, entering birds via the upper respiratory tract or eyes. The virus can be inhaled or transmitted through contaminated equipment, clothing, and people handling birds. It has been detected in dust up to 500 meters from infected barns. Once introduced, ILT spreads primarily bird-to-bird, with acutely infected birds shedding the virus more readily. Multi-age farms pose a higher risk of transmission from older to younger flocks. ILT-infected flocks are considered lifelong carriers of the virus and can serve as a source of future infections for other flocks.<\/p>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading\" id=\"h-clinical-signs\"><strong><strong>Clinical Signs<\/strong><\/strong><\/h4>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-3a88641f wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<p class=\"wp-block-paragraph\">ILT symptoms vary based on the virus strain and infection severity, but common signs include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gasping and difficulty breathing (dyspnea)<\/li>\n\n\n\n<li>Ocular discharge and sinusitis<\/li>\n\n\n\n<li>Frothy eye<\/li>\n\n\n\n<li>Nasal discharge (common with less severe strains)<\/li>\n\n\n\n<li>Reduced egg production<\/li>\n\n\n\n<li>Coughing up mucus or blood (in severe cases)<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<div class=\"wp-block-group is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-82936891 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"519\" height=\"690\" src=\"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-frothy-eye.png\" alt=\"\" class=\"wp-image-1366\" style=\"width:232px;height:auto\" srcset=\"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-frothy-eye.png 519w, https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-frothy-eye-226x300.png 226w\" sizes=\"auto, (max-width: 519px) 100vw, 519px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-c91dbf76 wp-block-group-is-layout-flex\" style=\"padding-right:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<p class=\"has-small-font-size wp-block-paragraph\">Figure 1: Frothy eye &#8211; Photo by Dr. Maral Rahmani<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading\" id=\"h-post-mortem-lesions\"><strong><strong><strong>Post-mortem Lesions<\/strong><\/strong><\/strong><\/h4>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-abaf916f wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<p class=\"wp-block-paragraph\">Upon necropsy, ILT often presents as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Swelling of the conjunctiva and infraorbital sinuses in mild cases of ILT<\/li>\n\n\n\n<li>Hemorrhagic inflammation of the trachea and the presence of bloody mucoid casts in severe cases<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<div class=\"wp-block-group is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-82936891 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-1-2.jpg\" alt=\"\" class=\"wp-image-1408\" style=\"width:249px;height:auto\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-c91dbf76 wp-block-group-is-layout-flex\" style=\"padding-right:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<p class=\"has-small-font-size wp-block-paragraph\">Figure 2: Hemorrhages in trachea &#8211; Photo by Dr. Maral Rahmani<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading\" id=\"h-how-is-ilt-diagnosed\"><strong><strong><strong>How is ILT Diagnosed?<\/strong><\/strong><\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">While presumptive diagnosis can be made based on clinical signs and lesions, a definitive diagnosis requires microscopic examination of the trachea and conjunctiva from affected birds.<\/p>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading\" id=\"h-strategies-for-ilt-prevention-and-contro-l\"><strong><strong><strong><strong><strong><strong>Strategies for ILT Prevention and Contro<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong>l<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Vaccination<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While ILT vaccines <strong>do not prevent infection<\/strong>, they help reduce disease severity and economic impact, especially in areas where the disease is endemic. The most common used vaccines in Canada are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Recombinant ILT vaccines, given at the hatchery, help reduce clinical signs and maintain bird performance but are less effective at limiting virus shedding.<\/li>\n\n\n\n<li>Live attenuated TCO vaccines provide stronger protection against respiratory symptoms and mortality, while also reducing virus replication and shedding. TCO vaccines are highly attenuated, ensuring strong immunity without regaining virulence or spreading between birds<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Biosecurity and Farm Management<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Strict biosecurity measures<\/strong> are essential in stopping ILT transmission. Key practices include:<br>&nbsp;Sanitizing equipment, vehicles, and personnel to prevent virus introduction<\/li>\n\n\n\n<li><strong>Controlled movement<\/strong> of people and birds to limit disease spread<\/li>\n\n\n\n<li><strong>Thorough cleaning and disinfection<\/strong> of barns after flock shipment<\/li>\n\n\n\n<li><strong>Extended downtime <\/strong>before next placement to break the virus cycle<\/li>\n\n\n\n<li><strong>All-in\/all-out operation<\/strong><\/li>\n<\/ul>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading\" id=\"h-final-thoughts\"><strong><strong><strong>Final Thoughts<\/strong><\/strong><\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">ILT remains a serious challenge for poultry producers, but a <strong>proactive approach combining vaccination, biosecurity, and effective farm management<\/strong> can significantly reduce its impact. <strong>Educating poultry farmers<\/strong> and ensuring compliance with disease control protocols are key to <strong>keeping flocks healthy and minimizing industry losses<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Important:<\/strong> ILT is a <strong>reportable disease in British Columbia<\/strong>. If you suspect ILT in your flock, immediately self-quarantine the premises and contact your veterinarian for guidance and testing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Want More Poultry Health Insights?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stay updated on the latest disease management strategies! Bookmark our website for more expert articles on poultry health and biosecurity.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div class=\"wp-block-group alignfull is-layout-flow wp-block-group-is-layout-flow\">\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading\" id=\"h-references\"><strong><strong><strong><strong><strong>References<\/strong><\/strong><\/strong><\/strong><\/strong><\/h4>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Chin, R.P. et al. Intervention Strategies for Laryngotracheitis: Impact of Extended Downtime and Enhanced Biosecurity Auditing. Avian Diseases. 2009; 53:574-577.<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Guy, James S. and Trevor J. Bagust. Chapter 4: Laryngotracheitis. Diseases of Poultry. 13th edition. Ames: Wiley-Blackwell, 2013. Print.<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Dufour-Zavala, Louise. Epizootiology of Infectious Laryngotracheitis and Presentation of an Industry Control Program. Avian Diseases. 2008; 52:1-7.<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Volkova, Victoriya et al. Factors Associated with Introduction of Infectious Laryngotracheitis Virus on Broiler Farms During a Localized Outbreak. Avian Diseases. 2012; 56: 521-528.<\/p>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity is-style-default\"\/>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>By Dr. Maral Rahmani PoultryMed Veterinary Services March 2025 Introduction Infectious laryngotracheitis (ILT) is a highly contagious respiratory disease affecting chickens and some gallinaceous birds such as pheasants and peafowl (but not turkeys). Caused by a herpesvirus, ILT has been an ongoing concern in poultry-dense regions like the Fraser Valley, BC, where it remains a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"wp-custom-template-page-with-link-footer-left-sidebar","meta":{"footnotes":""},"class_list":["post-1334","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Infectious Laryngotracheitis (ILT) in Poultry: A Persistent Threat to Flocks - PoultryMed<\/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:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Infectious Laryngotracheitis (ILT) in Poultry: A Persistent Threat to Flocks\" \/>\n<meta property=\"og:description\" content=\"By Dr. Maral Rahmani PoultryMed Veterinary Services March 2025 Introduction Infectious laryngotracheitis (ILT) is a highly contagious respiratory disease affecting chickens and some gallinaceous birds such as pheasants and peafowl (but not turkeys). Caused by a herpesvirus, ILT has been an ongoing concern in poultry-dense regions like the Fraser Valley, BC, where it remains a [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/\" \/>\n<meta property=\"og:site_name\" content=\"PoultryMed\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-30T14:54:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-frothy-eye.png\" \/>\n\t<meta property=\"og:image:width\" content=\"519\" \/>\n\t<meta property=\"og:image:height\" content=\"690\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\\\/\",\"url\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\\\/\",\"name\":\"Infectious Laryngotracheitis (ILT) in Poultry: A Persistent Threat to Flocks - PoultryMed\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/ILT-frothy-eye.png\",\"datePublished\":\"2025-03-12T05:49:14+00:00\",\"dateModified\":\"2025-03-30T14:54:21+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/ILT-frothy-eye.png\",\"contentUrl\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/ILT-frothy-eye.png\",\"width\":519,\"height\":690},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Infectious Laryngotracheitis (ILT) in Poultry: A Persistent Threat to Flocks\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/#website\",\"url\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/\",\"name\":\"PoultryMed Veterinary Services\",\"description\":\"Home\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/#organization\"},\"alternateName\":\"PoultryMed\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/#organization\",\"name\":\"PoultryMed Veterinary Services\",\"alternateName\":\"PoultryMed\",\"url\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/wp-content\\\/uploads\\\/2024\\\/10\\\/PoultryMed-logo-V5.png\",\"contentUrl\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/wp-content\\\/uploads\\\/2024\\\/10\\\/PoultryMed-logo-V5.png\",\"width\":2739,\"height\":2066,\"caption\":\"PoultryMed Veterinary Services\"},\"image\":{\"@id\":\"https:\\\/\\\/www.poultrymed.ca\\\/main\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.instagram.com\\\/poultry.med\\\/\"],\"description\":\"PoultryMed is a mobile veterinary clinic dedicated to supporting the health, productivity, and welfare of poultry flocks. We offer a range of specialized services tailored to meet the unique needs of commercial farms (broilers, layers, breeders), and also small backyard flocks, including onsite visits and telehealth\\\/phone consultations. Our mobile clinic is available for on-site visits in many parts of the BC Lower Mainland and Fraser Valley (including Langley, Abbotsford, Chilliwack, Maple Ridge, Surrey, Vancouver and others). Our veterinarian Dr. Maral Rahmani is a board-certified Poultry Veterinarian with over a decade of experience. Remote consultations \u2014 by phone or video conference\u2014 are available to clients anywhere in British Columbia. Whether in person or remotely, we\u2019re dedicated to supporting the health and wellbeing of your birds.\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Infectious Laryngotracheitis (ILT) in Poultry: A Persistent Threat to Flocks - PoultryMed","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:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/","og_locale":"en_US","og_type":"article","og_title":"Infectious Laryngotracheitis (ILT) in Poultry: A Persistent Threat to Flocks","og_description":"By Dr. Maral Rahmani PoultryMed Veterinary Services March 2025 Introduction Infectious laryngotracheitis (ILT) is a highly contagious respiratory disease affecting chickens and some gallinaceous birds such as pheasants and peafowl (but not turkeys). Caused by a herpesvirus, ILT has been an ongoing concern in poultry-dense regions like the Fraser Valley, BC, where it remains a [&hellip;]","og_url":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/","og_site_name":"PoultryMed","article_modified_time":"2025-03-30T14:54:21+00:00","og_image":[{"width":519,"height":690,"url":"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-frothy-eye.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/","url":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/","name":"Infectious Laryngotracheitis (ILT) in Poultry: A Persistent Threat to Flocks - PoultryMed","isPartOf":{"@id":"https:\/\/www.poultrymed.ca\/main\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/#primaryimage"},"image":{"@id":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/#primaryimage"},"thumbnailUrl":"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-frothy-eye.png","datePublished":"2025-03-12T05:49:14+00:00","dateModified":"2025-03-30T14:54:21+00:00","breadcrumb":{"@id":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/#primaryimage","url":"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-frothy-eye.png","contentUrl":"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2025\/03\/ILT-frothy-eye.png","width":519,"height":690},{"@type":"BreadcrumbList","@id":"https:\/\/www.poultrymed.ca\/main\/infectious-laryngotracheitis-ilt-in-poultry-a-persistent-threat-to-flocks\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.poultrymed.ca\/main\/"},{"@type":"ListItem","position":2,"name":"Infectious Laryngotracheitis (ILT) in Poultry: A Persistent Threat to Flocks"}]},{"@type":"WebSite","@id":"https:\/\/www.poultrymed.ca\/main\/#website","url":"https:\/\/www.poultrymed.ca\/main\/","name":"PoultryMed Veterinary Services","description":"Home","publisher":{"@id":"https:\/\/www.poultrymed.ca\/main\/#organization"},"alternateName":"PoultryMed","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.poultrymed.ca\/main\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.poultrymed.ca\/main\/#organization","name":"PoultryMed Veterinary Services","alternateName":"PoultryMed","url":"https:\/\/www.poultrymed.ca\/main\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.poultrymed.ca\/main\/#\/schema\/logo\/image\/","url":"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2024\/10\/PoultryMed-logo-V5.png","contentUrl":"https:\/\/www.poultrymed.ca\/main\/wp-content\/uploads\/2024\/10\/PoultryMed-logo-V5.png","width":2739,"height":2066,"caption":"PoultryMed Veterinary Services"},"image":{"@id":"https:\/\/www.poultrymed.ca\/main\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.instagram.com\/poultry.med\/"],"description":"PoultryMed is a mobile veterinary clinic dedicated to supporting the health, productivity, and welfare of poultry flocks. We offer a range of specialized services tailored to meet the unique needs of commercial farms (broilers, layers, breeders), and also small backyard flocks, including onsite visits and telehealth\/phone consultations. Our mobile clinic is available for on-site visits in many parts of the BC Lower Mainland and Fraser Valley (including Langley, Abbotsford, Chilliwack, Maple Ridge, Surrey, Vancouver and others). Our veterinarian Dr. Maral Rahmani is a board-certified Poultry Veterinarian with over a decade of experience. Remote consultations \u2014 by phone or video conference\u2014 are available to clients anywhere in British Columbia. Whether in person or remotely, we\u2019re dedicated to supporting the health and wellbeing of your birds."}]}},"_links":{"self":[{"href":"https:\/\/www.poultrymed.ca\/main\/wp-json\/wp\/v2\/pages\/1334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.poultrymed.ca\/main\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.poultrymed.ca\/main\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.poultrymed.ca\/main\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.poultrymed.ca\/main\/wp-json\/wp\/v2\/comments?post=1334"}],"version-history":[{"count":22,"href":"https:\/\/www.poultrymed.ca\/main\/wp-json\/wp\/v2\/pages\/1334\/revisions"}],"predecessor-version":[{"id":1455,"href":"https:\/\/www.poultrymed.ca\/main\/wp-json\/wp\/v2\/pages\/1334\/revisions\/1455"}],"wp:attachment":[{"href":"https:\/\/www.poultrymed.ca\/main\/wp-json\/wp\/v2\/media?parent=1334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}