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Eta statya o semejstve virusov O podsemejstve virusov sm Koronavirusy podsemejstvo o bolezni svyazannoj s pandemiej COVID 19 sm COVID 19 o viruse vyzyvayushem eto zabolevanie sm SARS CoV 2 Koronavirusy lat Coronaviridae semejstvo RNK soderzhashih virusov vklyuchayushee na maj 2020 goda 45 vidov obedinyonnyh v dva podsemejstva Porazhayut mlekopitayushih vklyuchaya cheloveka ptic i zemnovodnyh Nazvanie svyazano so stroeniem virusa shipovidnye otrostki kotorogo napominayut solnechnuyu koronu Izvestno 7 koronavirusov porazhayushih cheloveka HCoV 229E vpervye vyyavlen v seredine 1960 h godov HCoV NL63 alfakoronavirus vozbuditel byl vyyavlen v Niderlandah v 2004 godu HCoV OC43 A vozbuditel vyyavlen v 1967 godu HCoV HKU1 betakoronavirus A vozbuditel obnaruzhen v Gonkonge v 2005 godu SARS CoV 1 betakoronavirus B vozbuditel tyazhyologo ostrogo respiratornogo sindroma pervyj sluchaj zabolevaniya kotorym byl zaregistrirovan v 2002 godu MERS CoV betakoronavirus C vozbuditel blizhnevostochnogo respiratornogo sindroma vspyshka kotorogo proizoshla v 2015 godu SARS CoV 2 betakoronavirus B vyyavlen vo vtoroj polovine 2019 goda vyzval pandemiyu COVID 19 sledstviem kotoroj stalo zakrytie granic i vvedenie ekstrennyh mer bezopasnosti karantin strogaya izolyaciya i tak dalee Koronavirusy3D model SARS CoV 2Nauchnaya klassifikaciyaGruppa VirusyRealm RiboviriaCarstvo OrthornaviraeTip PisuviricotaKlass Poryadok NidoviralesPodporyadok CornidovirineaeSemejstvo KoronavirusyMezhdunarodnoe nauchnoe nazvanieCoronaviridaePodsemejstvaLetovirinae OrthocoronavirinaeGruppa po BaltimoruIV ocRNK virusySistematika v VikividahIzobrazheniya na VikiskladeNCBI 11118EOL 5029EtimologiyaNazvanie koronavirus proishodit ot latinskogo corona chto oznachaet venok kotoroe v svoyu ochered zaimstvovano iz dr grech korwnh korṓne girlyanda venok Nazvanie bylo pridumano Dzhunoj Almejdoj i kotorye pervymi obnaruzhili i izuchili chelovecheskie koronavirusy Eto slovo vpervye bylo ispolzovano v pechati v 1968 godu neoficialnoj gruppoj virusologov v zhurnale Nature dlya oboznacheniya novogo semejstva virusov Nazvanie otnositsya k harakternomu vneshnemu vidu virionov infekcionnaya forma virusa pri elektronnoj mikroskopii kotorye imeyut bahromu iz bolshih vypuklyh vystupov na poverhnosti sozdayushih izobrazhenie napominayushee solnechnuyu koronu ili galo Eta morfologiya sozdaetsya peplomerami virusnyh shipov kotorye predstavlyayut soboj belki na poverhnosti virusa Nauchnoe nazvanie Coronavirus bylo prinyato v kachestve nazvaniya roda Mezhdunarodnym komitetom po nomenklature virusov pozzhe pereimenovannym v Mezhdunarodnyj komitet po taksonomii virusov v 1971 godu Po mere uvelicheniya chisla novyh vidov rod byl razdelen na chetyre roda a imenno Alphacoronavirus Betacoronavirus Deltacoronavirus i Gammacoronavirus v 2009 godu Obshee nazvanie koronavirus ispolzuetsya dlya oboznacheniya lyubogo chlena podsemejstva Orthocoronavirinae Po sostoyaniyu na 2020 god oficialno priznano 45 vidov EpidemiologiyaKoronavirusy vyzyvayut zabolevaniya mlekopitayushih lyudej letuchih myshej koshek sobak svinej krupnogo rogatogo skota i ptic Nekotorye primery u ptic angl koronavirus kur koronavirus fazanov koronavirus indeek vyzyvayushij GfCoV koronavirus cesarok PgCoV koronavirus golubej i t d u svinej koronavirus transmissivnogo gastroenterita svinej i ego patotip respiratornyj koronavirus svinej u sobak angl i PanCCoV u koshek angl koronavirus enterita koshek koronavirus infekcionnogo peritonita koshek u myshej vyzyvaet virusnyj gepatit myshej u krys koronavirus krys koronavirus puffinoza burevestnikov i t d nemalo koronavirusov i u raznyh vidov rukokrylyh Istochnikami koronavirusnyh infekcij mogut byt bolnoj chelovek zhivotnye Vozmozhnye mehanizmy peredachi vozdushno kapelnyj vozdushno pylevoj fekalno oralnyj kontaktnyj Zabolevaemost rastyot zimoj i rannej vesnoj V strukture ORVI gospitalizirovannyh bolnyh koronavirusnaya infekciya sostavlyaet v srednem 12 O shirokoj rasprostranyonnosti koronavirusov svidetelstvuyut specifichnye antitela vyyavlennye u 80 lyudej Koronavirus cheloveka vpervye byl vydelen v 1965 godu ot bolnyh ORVI D Tirrelom iz nosoglotki pri ostrom rinite pozzhe v 1975 godu E Kaul i S Klark vydelili koronavirus iz isprazhnenij pri detskom enterokolite V posleduyushee vremya koronavirusy pochti ne privlekali vnimanie issledovatelej poka v Kitae v 2002 2003 godah ne byla zafiksirovana vspyshka atipichnoj pnevmonii ili tyazhyologo ostrogo respiratornogo sindroma TORS SARS Zabolevanie bylo vyzvano virusom SARS CoV 1 V rezultate bolezn rasprostranilas na drugie strany vsego zabolelo 8273 cheloveka 775 umerlo letalnost 9 6 Virus MERS CoV yavlyaetsya vozbuditelem blizhnevostochnogo respiratornogo sindroma MERS pervye sluchai kotorogo byli zaregistrirovany v 2012 godu V 2015 godu v Yuzhnoj Koree proizoshla vspyshka blizhnevostochnogo respiratornogo sindroma v hode kotoroj zabolelo 183 cheloveka umerlo 33 V dekabre 2019 goda v Kitae nachalas vspyshka pnevmonii vyzvannaya novoobnaruzhennym virusom SARS CoV 2 Vskore ona rasprostranilas na drugie strany V dekabre 2022 goda glava Vsemirnoj organizacii zdravoohraneniya Tedros Adhanom Gebrejesus zayavil chto bolee chem u 90 naseleniya zemli est nekotoryj uroven immuniteta k COVID 19 soglasno ego utverzhdeniyu eto proizoshlo blagodarya vakcinacii ili posle perenesennogo zabolevaniya Stroenie i zhiznennyj ciklStroenie viriona koronavirusa Genom predstavlen odnocepochechnoj RNK Nukleokapsid okruzhyon belkovoj membranoj i liposoderzhashej vneshnej obolochkoj ot kotoroj othodyat bulavovidnye shipovidnye otrostki napominayushie koronu za chto semejstvo i poluchilo svoyo nazvanie SARS CoV 2 ispolzuet S belok na korone dlya prikrepleniya k svoemu receptoru angiotenzinprevrashayushemu fermentu 2 ACE2 a takzhe k serinovoj proteaze TMPRSS2 kak i virus SARS CoV 1 atipichnoj pnevmonii Kletka okutyvaet virus svoej membranoj i obrazovavshijsya membrannyj puzyryok okazyvaetsya v citoplazme kletki Dva upomyanutyh belka receptora kletki transformiruyut S belok virusa takim obrazom chto membrany virusa i kletki slivayutsya Posle proniknoveniya v kletku virus s pomoshyu vnutrikletochnyh membran sozdayot membrannye puzyrki k kotorym prikreplyayutsya specialnye belkovye kompleksy V etih kompleksah sinteziruetsya kopiya genomnoj RNK virusa i korotkie mRNK dlya sinteza belkov virusa RNK virusa imeet 5 metilirovannoe nachalo i 3 poliadenilirovannoe okonchanie Eto pozvolyaet virusu iniciirovat na svoih RNK sborki svoih belkov ribosomami kletki kotoraya ne v sostoyanii opredelit eto RNK virusa ili RNK dlya belkov samoj kletki Koronavirusy imeyut RNK okolo 26 30 tysyach par osnovanij eto oznachaet chto koronavirusy obladayut krupnejshej nesegmentirovannoj RNK sredi vseh izvestnyh virusov to est yavlyayutsya slozhnejshimi po strukture sredi izvestnyh virusov Genom virusa sostoit iz bolee chem 20 000 nukleotidov i kodiruet dva replikativnyh poliproteina pp1a i pp1ab iz kotoryh v sleduyushij prohod replikacii translyacii formiruetsya kopiya RNK virusa a takzhe 8 otdelnyh mRNK shablonov dlya belkov virusov kotorye beskonechno ih generiruyut Generaciya belkov M S HE i E popadayushih v membrannuyu lipidnuyu obolochku virusa proishodit na sootvetstvuyushih mRNK v endoplazmaticheskom retikulume kletki belok zhe N kotoryj budet okruzhat genomnuyu RNK virusa sinteziruetsya na mRNK plavayushih v citoplazme kletki Moment prikrepleniya koronavirusa k receptoru kletki scepka S belka korony virusa i receptora Zhiznennyj cikl koronavirusa source source source source source source Process okonchaniya sborki koronavirusa v citoplazme inficirovannoj kletki Vokrug RNK virusa idyot postroenie kapsida Posle polucheniya genomnoj RNK virusa i neobhodimyh ego belkov eta RNK okutannaya belkom N priblizhaetsya k sidyashim na endoplazmaticheskom retikulume belkam i vzaimodejstvuet s nimi V rezultate membrana endoplazmaticheskogo retikuluma s nahodyashimisya v nej virusnymi belkami ohvatyvaet etu RNK formiruya virion Viriony zatem vysvobozhdayutsya iz inficirovannoj kletki cherez ekzocitoz Posle vyhoda virionov iz kletki ona pogibaet TaksonomiyaSemejstvo koronavirusov lat Coronaviridae vklyuchaet v sebya 2 podsemejstva i okolo 46 vidov Podsemejstvo Letovirinae vydelennoe v 2018 godu vklyuchaet lish odin prinyatyj vid podrod i rod odnako vydeleny eshyo dva vida oficialno poka ne utverzhdyonnye Rod Alphaletovirus Podrod Milecovirus Vid Microhyla letovirus 1 Podsemejstvo Orthocoronavirinae Rod Alfakoronavirus vklyuchaet 14 podrodov i 19 vidov Duvinacovirus Human coronavirus 229E Human coronavirus NL63 Rod Betakoronavirus vklyuchaet 5 podrodov i 14 vidov Human coronavirus OC43 Human coronavirus HKU1 Middle East respiratory syndrome related coronavirus MERS CoV Severe acute respiratory syndrome related coronavirus SARS CoV 1 SARS CoV 2 Rod Gammakoronavirus vklyuchaet 3 podroda i 6 vidov Rod Deltakoronavirus vklyuchaet 3 podroda i 7 vidov Sm takzheBat SARS like 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10 1038 220650b0 T here is also a characteristic fringe of projections 200 A long which are rounded or petal shaped This appearance recalling the solar corona is shared by mouse hepatitis virus and several viruses recently recovered from man namely strain B814 229E and several others Sturman LS Holmes KV 1983 01 01 Lauffer MA Maramorosch K eds The molecular biology of coronaviruses Advances in Virus Research 28 35 112 doi 10 1016 s0065 3527 08 60721 6 ISBN 9780120398287 PMC 7131312 PMID 6362367 T hese viruses displayed a characteristic fringe of large distinctive petal shaped peplomers or spikes which resembled a crown like the corona spinarum in religious art hence the name coronaviruses Lalchhandama Kholhring 2020 The chronicles of coronaviruses the bronchitis the hepatitis and the common cold Science Vision angl 20 1 43 53 doi 10 33493 scivis 20 01 04 Carstens EB 2010 Ratification vote on taxonomic proposals to the International Committee on Taxonomy of Viruses 2009 Archives of 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2004 2017 t 15 ISBN 978 5 85270 346 0 Stasevich K Zhizn i ustrojstvo koronavirusov rus Nauka i zhizn 2020 4 S 8 13 Shelkanov M Yu Popova A Yu Dedkov V G Akimkin V G Maleev V V Istoriya izucheniya i sovremennaya klassifikaciya koronavirusov Nidovirales Coronaviridae Infekciya i immunitet 2020 T 10 2 S 221 246 DOI 10 15789 2220 7619 HOI 1412 Shelkanov M Yu Kolobuhina L V Burgasova O A Kruzhkova I S Maleev V V COVID 19 etiologiya klinika lechenie Infekciya i immunitet 2020 T 10 3 S 421 445 DOI 10 15789 2220 7619 CEC 1473SsylkiV Vikislovare est statya koronavirus Koronavirusy v Vikinovostyah
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