{"version":"1.0","provider_name":"TBE Book","provider_url":"https:\/\/tbenews.com\/tbe","author_name":"Administrator admin","author_url":"https:\/\/tbenews.com\/tbe\/author\/administrator-admin\/","title":"Switzerland - TBE Book","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"bfc68qRDfA\"><a href=\"https:\/\/tbenews.com\/tbe\/tbe12b33\/\">Switzerland<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/tbenews.com\/tbe\/tbe12b33\/embed\/#?secret=bfc68qRDfA\" width=\"600\" height=\"338\" title=\"&#8220;Switzerland&#8221; &#8212; TBE Book\" data-secret=\"bfc68qRDfA\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/tbenews.com\/tbe\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/tbenews.com\/tbe\/wp-content\/uploads\/2017\/01\/Switzerland.jpg","thumbnail_width":1180,"thumbnail_height":250,"description":"TBE in Switzerland and Liechtenstein Daniel Desgrandchamps and Klara M. Posfay-Barbe E-CDC risk status: endemic (data as of end 2022) History and current situation The first serological reports of tick-borne encephalitis (TBE) in Switzerland date back to the early 1970s [T. Krech. Dissertation, University of Berne, 1980]. Surveillance started in 1984, and TBE became a notifiable disease in 1988. Most cases are reported between April and October with a tick bite exposure below an altitude of 1500\u20132000 meters.1,2 Tick-borne encephalitis virus (TBEV) has been identified in ticks from almost all regions of Switzerland and in Liechtenstein. Accordingly, &nbsp;human cases are found in almost all regions. Most cases occur in the northeastern, central, and midwestern regions of the country, but in recent years, new endemic regions have been detected in western, and southern Switzerland. TBE has thus become endemic almost in the entire country. In 2013, a procedure allowing for the definition of regions with a local TBE vaccination recommendation was adopted for Switzerland and Liechtenstein.3 Data from cases notified over the previous 12 years (\u201chigh risk areas\u201d, Fig. 3a) were combined with data from the historical map of Swiss endemic regions and \u201cnatural clusters\u201d. The resulting Swiss map was used until 2018 for the definition of regions where TBE vaccination is recommended for exposed people (Figure 3b). However, in view of the increasing numbers of reported TBE cases in recent years, Swiss and Liechtenstein health authorities decided in 2019 to consider the entire countries \u2013 except for the cantons of Geneva and Ticino \u2013 as an at-risk area in which TBE vaccination is recommended for all individuals with possible exposure (both as residents or as visitors)2, see Figure 3c. Currently, vaccination is recommended and reimbursed by health insurance for individuals older than 6 years of age living in or visiting endemic regions. In children aged 1\u20135 years, the indication shall be based on individual considerations. Unlike in other countries and in contrast to the label, a booster dose is recommended only every 10 years.3 As elsewhere in Europe, the proportion of &#8220;mild cases&#8221; is lower and the number of more serious cases higher with increasing age. However, more serious disease patterns like meningoencephalitis have also been reported in children below the age of 6 years over the later years (E. Altpeter, FOPH, personal communication). Less than half (45%) of symptomatic patients have reported a tick bite within 4 weeks of onset.5 Less than 2% of cases experienced tick bites outside of Switzerland. Approximately 80% of all symptomatic patients are hospitalized.1 The mean duration for hospitalization was 9 days (interquartile range 5\u201311 days), and duration increased linearly with age (5 days in children less than 14 years old to 14.6 days for patients older than 70 years).5 Overview of TBE in Switzerland Table 1: Virus, vector, transmission of TBE in Switzerland Viral subtypes, distribution European subtype; 97%\u201398.4% similar to the reference Neudoerfl strain, strain Genbank = U27495; mostly: strain NET-BE7, HQ883372 &amp; NETBE8 (HM450136, HM450137, HM450138, HM450140, HM450141)6,7 Reservoir animals Small mammals such as rodents, birds6,7 Infected tick species (%) Ixodes ricinus. 1.6%\u20139.9% in areas &lt;2000 meters altitude6,8 Dairy product transmission Not documented Table 2: TBE reporting and vaccine prevention in Switzerland Mandatory TBE reporting Notifiable disease since 1988 Tick bites and Lyme borreliosis have been reported via a sentinel group(general practitioners and pediatricians in the entire country) since 20085,9 Categorization5 Case classification Laboratory criteria Clinical criteria Not a case Positive IgM serology No ILI &amp; no neurological symptoms Possible case a) Positive IgM serology ILI or non-specific neurological signs &amp; symptoms &nbsp; b) Positive IgM + positive IgG serology* Any Probable case a) Positive IgM Meningitis, meningoencephalitis, encephalomyelitis or pareses &nbsp; b) Positive IgM + positive IgG serology* ILI or non-specific neurological signs or symptoms Confirmed case a) Positive IgM Meningitis, meningoencephalitis, encephalomyelitis, or pareses &nbsp; b) Positive IgM + positive IgG serology* Meningitis, meningoencephalitis, encephalomyelitis, or pareses IgG, immunoglobulin; IgG, immunoglobulin; ILI, influenza-like illness; PCR, polymerase chain reaction *Or anti-TBE IgG serum antibody seroconversion or =4-fold rise in anti-TBE IgG serum antibodies Special clinical features No Swiss data &nbsp; % with sequelae: 25%; mortality: 1% Available vaccines10 Encepur N\u00ae (Bavarian Nordic); FSME-Immun\u00ae (Baxter\/Pfizer) Number of doses sold: not available Vaccination recommendations and reimbursement10 Recommendations and reimbursement for vaccination in 2006 Vaccine uptake by age group\/risk group\/general population11 Average national vaccination uptake (3 doses), 2014\u20132016: 8 years old: 22%\u201331% 16 years old: 33%\u201345% High-risk area (canton of Thurgau): 8 years old: 40%\u201353% 16 years old: 64%\u201375% Name, address\/website of TBE National Reference Center National Reference Center for Tick-borne Diseases, SPIEZ LABORATORY is a division of the Federal Office for Civil Protection&nbsp;LABOR SPIEZ Austrasse 3700 SPIEZ &#8211; Switzerland https:\/\/www.labor-spiez.ch\/de\/die\/bio\/dediebionrz.htm nrzk@babs.admin.ch Figure 1: Burden of TBE in Switzerland 2000\u201320222,4 Source data Figure 2: Age and gender distribution of all cases of TBE (possible, probable, and confirmed cases) in Switzerland 2000\u201320224 Source data Figure 3a: High risk areas3 (local clusters of TBE notifications over the last 10 years, as per March 2022). Figure 3b: Defined risk areas in Switzerland3, where vaccination was recommended for exposed people until end of 2018. Figure 3c: Extended risk areas with recommended TBE vaccination for all exposed individuals (residents and visitors) as per March 20222 Latest update: Click here Acknowledgments Unpublished data and advice on data interpretation were kindly provided by Dr Ekkehardt Altpeter, Federal Department of Home Affairs FDHA, Federal Office of Public Health FOPH, Division of Communicable Diseases, Bern, Switzerland.Updates for 2022 cases provided by Dr Kyra Zens, University of Zurich, Institute for Experimental Immunology, Switzerland. Contact: daniel@desgrandchamps.ch Citation: Desgrandchamps D, Posfay-Barbe, MK. TBE in Switzerland and Liechtenstein. Chapter 12b. In: Dobler G, Erber W, Br\u00f6ker M, Schmitt HJ, eds. The TBE Book. 6th ed. Singapore: Global Health Press; 2023. doi: 10.33442\/26613980_12b33-6 References"}