\nUn nou studiu publicat \u00een Proceedings of the Royal Society dezv\u0103luie c\u0103 vorbirea \u00eendelungat\u0103 poate fi la fel de periculoas\u0103 ca tu\u015fitul l\u00e2ng\u0103 o alt\u0103 persoan\u0103, deoarece micro-particulele expulzate din gur\u0103 r\u0103m\u00e2n \u00een aer. <\/p>\n
\nO descoperire care ar putea explica de ce Covid-19 se r\u0103sp\u00e2nde\u015fte u\u015for \u00een interior \u015fi care demonstreaz\u0103 c\u0103 m\u0103surile de distan\u0163are social\u0103 nu ofer\u0103 o protec\u0163ie suficient\u0103 \u00eempotriva virusului.<\/p>\n
\nAstfel, apare din nou importan\u0163a vital\u0103 a aerisirii camerelor \u015fi folosirea m\u0103\u015ftilor pentru a \u00eencetini r\u0103sp\u00e2ndirea Covid-19, scrie La Stampa.<\/p>\n
\nCercet\u0103torii de la Universitatea Cambridge \u015fi Imperial College din Londra au folosit modele matematice pentru a demonstra cum Sars-CoV-2 se r\u0103sp\u00e2nde\u015fte \u00een diferite spa\u0163ii interioare, \u00een func\u0163ie de m\u0103rime, num\u0103rul de persoane, aerisire \u015fi purtarea sau nepurtarea m\u0103\u015ftilor.<\/p>\n
\nDe exemplu, petrecerea unei ore \u00eentr-un spa\u0163iu \u00eenchis de 250 de metri p\u0103tra\u0163i, care are o capacitate minim\u0103 de 50 de persoane \u015fi o aerisire tipic\u0103 \u201ede birou\u201d, are o probabilitate estimat\u0103 la 8% de infectare, dac\u0103 exist\u0103 5 persoane \u00een camera respectiv\u0103 f\u0103r\u0103 masc\u0103.<\/p>\n
\nDac\u0103 schimbarea complet\u0103 a aerului are loc de cinci ori pe or\u0103 \u00een loc de trei, \u015fansele \u00een condi\u0163ii similare scad la 2% \u015fi la fel se \u00eent\u00e2mpl\u0103 dac\u0103 toat\u0103 lumea poart\u0103 o masc\u0103 cu trei straturi (cum ar fi cele chirurgicale).<\/p>\n
\nPotrivit cercet\u0103torilor, pic\u0103turile mari de saliv\u0103 expulzate prin tuse sau str\u0103nut ajung pe sol, \u00eens\u0103 pic\u0103turile mici produse prin vorbire, numite \u015fi \u201eaerosoli\u201d, pot transporta virusul pe doi metri \u015fi persist\u0103 \u00een aer.<\/p>\n
\n\u00cen plus, dureaz\u0103 doar c\u00e2teva secunde pentru ca particulele expulzate s\u0103 \u201eparcurg\u0103\u201d mai mult de 2 metri, distan\u0163a recomandat\u0103 \u00eentre oameni.<\/p>\n
\nMai exact, datele arat\u0103 c\u0103 la o or\u0103 dup\u0103 ce o persoan\u0103 infectat\u0103 vorbe\u015fte timp de 30 de secunde, aerosolul r\u0103mas con\u0163ine mult mai mult\u0103 mas\u0103 viral\u0103 dec\u00e2t dup\u0103 o tuse.<\/p>\n
\n\u201eVorbirea produce particule mult mai fine dec\u00e2t tusea, iar acestea pot r\u0103m\u00e2ne peste o or\u0103 \u00een cantit\u0103\u0163i suficiente pentru a infecta\u201d, a declarat Pedro Magalh\u00e3es de Oliveira, expert la Universitatea Cambridge \u015fi coautor al studiului.<\/p>\n
\nOamenii de \u015ftiin\u0163\u0103 sunt de acord c\u0103 marea majoritate a cazurilor Covid-19 este r\u0103sp\u00e2ndit\u0103 prin transmitere intern\u0103, fie prin aerosoli sau prin pic\u0103turi. Iar iarna oamenii petrec mai mult timp \u00een interior, astfel c\u0103 exist\u0103 o cre\u015ftere a num\u0103rului de cazuri Covid-19.<\/p>\n","protected":false},"excerpt":{"rendered":"
Un nou studiu publicat \u00een Proceedings of the Royal Society dezv\u0103luie c\u0103 vorbirea \u00eendelungat\u0103 poate fi la fel de periculoas\u0103 ca tu\u015fitul l\u00e2ng\u0103 o alt\u0103 persoan\u0103, deoarece micro-particulele expulzate din gur\u0103 r\u0103m\u00e2n \u00een aer. O descoperire care ar putea explica de ce Covid-19 se r\u0103sp\u00e2nde\u015fte u\u015for \u00een interior \u015fi care demonstreaz\u0103 c\u0103 m\u0103surile de distan\u0163are […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[46210,15314,7853],"class_list":["post-190430","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-covid","tag-raspandire","tag-studiu"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/190430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=190430"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/190430\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=190430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=190430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=190430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}