{"id":10109,"date":"2026-05-19T19:06:40","date_gmt":"2026-05-19T17:06:40","guid":{"rendered":"https:\/\/kit-survie.org\/kas-ir-hantaviruss\/"},"modified":"2026-05-19T19:06:40","modified_gmt":"2026-05-19T17:06:40","slug":"kas-ir-hantaviruss","status":"publish","type":"post","link":"https:\/\/kit-survie.org\/lv\/kas-ir-hantaviruss\/","title":{"rendered":"Kas ir hantav\u012bruss?"},"content":{"rendered":"

Lai s\u0101ktu m\u016bsu rokasgr\u0101matu s\u0113riju, kas velt\u012bta hantav\u012brusa biolo\u0123iskajam riskam, mums ir j\u0101veido pamati. Kas tie\u0161i ir hantav\u012bruss?<\/strong> No kurienes tas rodas un k\u0101 tas ietekm\u0113 organismu? \u0160aj\u0101 pirmaj\u0101 rakst\u0101 ir sniegta piln\u012bga apdraud\u0113juma karte, kas pal\u012bdz\u0113s jums to izprast, pirms uzzin\u0101siet, k\u0101 to p\u0101rvald\u012bt. <\/p>\n

<\/span>Hantav\u012brusa izcelsme: nesens v\u0113sturisks atkl\u0101jums<\/span><\/h2>\n

<\/span>Korejas kar\u0161 k\u0101 s\u0101kumpunkts<\/span><\/h3>\n

Lai gan \u0161\u012bs v\u012brusu saimes izrais\u012bt\u0101s slim\u012bbas, iesp\u0113jams, ir past\u0101v\u0113ju\u0161as jau gadsimtiem ilgi, hantav\u012brusu ofici\u0101li identific\u0113ja tikai 20. gadsimta vid\u016b. Pla\u0161\u0101ku atpaz\u012bstam\u012bbu \u0161is v\u012bruss ieguva Korejas kara laik\u0101 20. gadsimta 50. gadu s\u0101kum\u0101. Vair\u0101k nek\u0101 3000 Apvienoto N\u0101ciju Organiz\u0101cijas karav\u012bru smagi saslima, cie\u0161ot no m\u012bklainas drud\u017ea un ak\u016btas nieru mazsp\u0113jas. <\/p>\n

Tikai 1976. gad\u0101 korejie\u0161u virusologs Ho-Vangs L\u012b beidzot izol\u0113ja atbild\u012bgo ierosin\u0101t\u0101ju. V\u012brusa nosaukums c\u0113lies no Hantanas upes<\/strong> Dienvidkorej\u0101, net\u0101lu no vietas, kur bija infic\u0113ju\u0161ies karav\u012bri. \u0160is atkl\u0101jums pav\u0113ra ce\u013cu pla\u0161as l\u012bdz\u012bgu v\u012brusu saimes identific\u0113\u0161anai vis\u0101 pasaul\u0113. <\/p>\n

<\/span>1993. gada kr\u012bze Zieme\u013camerik\u0101<\/span><\/h3>\n

Ilgu laiku Rietumu pasaule uzskat\u012bja, ka \u0161ie draudi attiecas tikai uz \u0100ziju un Austrumeiropu. Viss main\u012bj\u0101s 1993. gad\u0101 Amerikas Savienoto Valstu “\u010detru st\u016bru” re\u0123ion\u0101 (\u0145\u016bmeksikas, Arizonas, Kolor\u0101do un J\u016btas kop\u012bg\u0101 robe\u017ea). K\u0101ds sportisks jauns v\u012brietis no navaho kopienas p\u0113k\u0161\u0146i nomira no zibens elpo\u0161anas trauc\u0113jumiem. <\/p>\n

P\u0113c tam vesel\u012bbas aizsardz\u012bbas iest\u0101des atkl\u0101ja jaunu hantav\u012brusa paveidu, ko nosauca par v\u012brusu Sin Nombre<\/strong> (v\u012bruss bez nosaukuma). At\u0161\u0137ir\u012bb\u0101 no \u0100zijas celma, kas uzbruka nier\u0113m, \u0161is amerik\u0101\u0146u variants tie\u0161i sk\u0101ra plau\u0161as, izraisot \u0161ausmino\u0161u mirst\u012bbas l\u012bmeni. T\u0101d\u0113j\u0101di hantav\u012bruss k\u013cuva par absol\u016btu priorit\u0101ti epidemiologiem vis\u0101 pasaul\u0113. <\/p>\n

<\/span>V\u012brusa b\u016bt\u012bba: specifiska biolo\u0123isk\u0101 strukt\u016bra<\/span><\/h2>\n

<\/span>Apvalka RNA v\u012bruss<\/span><\/h3>\n

T\u012bri biolo\u0123isk\u0101 zi\u0146\u0101 hantav\u012brusi pieder pie Hantaviridae<\/i> dzimtas (agr\u0101k klasific\u0113ti k\u0101 Bunyaviridae)<\/i>. Tie ir vienas virknes RNS<\/strong> v\u012brusi. Tas noz\u012bm\u0113, ka to \u0123en\u0113tiskais materi\u0101ls sast\u0101v no vienas ribonukle\u012bnsk\u0101bes virknes. \u0160\u0101da strukt\u016bra \u013cauj tiem relat\u012bvi viegli mut\u0113t, lai piel\u0101gotos saimniekorganismam, lai gan to mut\u0101cijas parasti ir maz\u0101k anarhiskas nek\u0101 gripas mut\u0101cijas. <\/p>\n

Izdz\u012bvo\u0161anas speci\u0101listiem \u013coti svar\u012bga ir t\u0101, ka hantav\u012bruss ir apvalka<\/strong> v\u012bruss. T\u0101 \u0101r\u0113jo membr\u0101nu veido dubults lip\u012bdu sl\u0101nis. K\u0101p\u0113c tas ir svar\u012bgi? T\u0101p\u0113c, ka apvalka v\u012brusi ir fiziski trausl\u0101ki \u0101r\u0113j\u0101 vid\u0113 nek\u0101 kaili v\u012brusi. \u0160is lip\u012bdu apvalks ir to Ahileja pap\u0113dis: to viegli izn\u012bcina karstums, saules ultravioletais starojums un galvenok\u0101rt t\u0101di pamata dezinfekcijas l\u012bdzek\u013ci k\u0101 balin\u0101t\u0101js vai spirts. <\/p>\n

<\/span>Dabisko rezervu\u0101ru koncepcija<\/span><\/h3>\n

Hantav\u012bruss savva\u013c\u0101 nevar izdz\u012bvot neierobe\u017eotu laiku vai patst\u0101v\u012bgi vairoties. Tam nepiecie\u0161ams saimnieks. \u0160aj\u0101 gad\u012bjum\u0101 dabiskais rezervu\u0101rs ir tikai un vien\u012bgi mazi z\u012bd\u012bt\u0101ji, galvenok\u0101rt savva\u013cas grauz\u0113ji<\/strong> (peles, lapsenes, \u017eurkas) un da\u017ereiz ar\u012b da\u017eu sugu \u017eurkas vai siksp\u0101r\u0146i<\/strong>. <\/p>\n

Visaizraujo\u0161\u0101kais un b\u012bstam\u0101kais \u0161o attiec\u012bbu aspekts ir v\u012brusa un t\u0101 saimnieka l\u012bdzatt\u012bst\u012bba<\/strong>. Grauz\u0113jiem, kas p\u0101rn\u0113s\u0101 hantav\u012brusu, nerodas nek\u0101di simptomi<\/strong>. Tie nesaslimst, to dz\u012bves ilgums netiek sa\u012bsin\u0101ts, un to uzved\u012bba paliek piln\u012bgi norm\u0101la. V\u012bruss izveido hronisku infekciju dz\u012bvniek\u0101, kas k\u013c\u016bst par past\u0101v\u012bgu replik\u0101cijas r\u016bpn\u012bcu, izvadot patog\u0113nu visu m\u016b\u017eu. <\/p>\n

<\/span>P\u0101rneses meh\u0101nisms: no dz\u012bvniekiem uz cilv\u0113kiem<\/span><\/h2>\n

<\/span>V\u012brusu da\u013ci\u0146u izdal\u012b\u0161an\u0101s<\/span><\/h3>\n

Infic\u0113tie grauz\u0113ji past\u0101v\u012bgi izvada hantav\u012brusu ar saviem \u0137erme\u0146a \u0161\u0137idrumiem. Visaugst\u0101k\u0101 koncentr\u0101cija ir konstat\u0113ta to ur\u012bn\u0101<\/strong>, ekskrementos<\/strong> un siekal\u0101s<\/strong>. Kad dz\u012bvnieks p\u0101rvietojas noliktav\u0101, tas \u0161o biolo\u0123isko materi\u0101lu nogulsn\u0113 uz gr\u012bdas, darbar\u012bkiem, malkas vai p\u0101rtikas iepakojuma<\/strong>. <\/p>\n

<\/span>Galvenais ce\u013c\u0161: aerosolu ieelpo\u0161ana.<\/span><\/h3>\n

Tie\u0161a p\u0101rne\u0161ana ar grauz\u0113ju kodumiem notiek, bet \u013coti reti. Gandr\u012bz visos gad\u012bjumos cilv\u0113ki infic\u0113jas elpce\u013cu ce\u013c\u0101 ar aerosoliem<\/strong>. Kad grauz\u0113ju ur\u012bns vai izk\u0101rn\u012bjumi iz\u017e\u016bst, tie saciet\u0113 un k\u013c\u016bst par apk\u0101rt\u0113jo putek\u013cu sast\u0101vda\u013cu. <\/p>\n

Maz\u0101k\u0101 meh\u0101nisk\u0101 kust\u012bba telp\u0101 (slauc\u012b\u0161ana, kastu mais\u012b\u0161ana, ba\u013c\u0137u p\u0101rvieto\u0161ana, vecas segas krat\u012b\u0161ana) izraisa \u0161o pies\u0101r\u0146oto putek\u013cu atk\u0101rtotu non\u0101k\u0161anu gais\u0101. Tad operators ieelpo t\u016bksto\u0161iem mikroda\u013ci\u0146u, kas p\u0101rn\u0113s\u0101 v\u012brusu. \u0160\u012bs da\u013ci\u0146as izk\u013c\u016bst cauri aug\u0161\u0113jiem elpo\u0161anas ce\u013ciem un non\u0101k tie\u0161i plau\u0161u sird\u012b, izraisot infekciju. <\/p>\n

<\/span>Citi pies\u0101r\u0146ojuma veidi<\/span><\/h3>\n

Lai gan galvenais v\u012brusa izplat\u012b\u0161an\u0101s ce\u013c\u0161 ir inhal\u0101cija, ir v\u0113l divi citi v\u012brusa p\u0101rne\u0161anas veidi, kam j\u0101piev\u0113r\u0161 uzman\u012bba lauka situ\u0101cij\u0101s:<\/p>\n