Vana vanoramba sei Covid-19?

Vana vanorwisa sei COVID-19 ؟

Vana vakanyanya kudzivirira zviratidzo zvakakomba zveCCIDID-19 nekuti vane yakasimba yekutanga "innate" mhinduro yekudzivirira iyo inokurumidza kubvisa hutachiona. Asi vaongorori kubva ku "Garvan Institute for Medical Research" vakawana kuti, kusiyana nevakuru, masoja ekudzivirira evana haayeuke hutachiona hweSARS-CoV-2, kureva kuti, haagadzirise ndangariro yekudzivirira kubva kuhutachiona nayo, saka kana. ivo gare gare vanoratidzirwa kuhutachiona, muviri wemwana unobata nawo sechinhu chitsva chekutyisidzira, maererano Sezvakabudiswa neNews Medical, ichitora Clinical Immunology.

Iyo "naivety" ye immune system

Chikonzero ndechekuti “vana havasati vabatwa nemavhairasi akawanda, saka masoja ezvirwere zvemuviri wavo “haasati aziva.” Nemhaka yokuti vana havagadziri masero endangariro T, vari mungozi yokubatwa nehosha yacho zvakare.

Muzvinafundo Fan anonongedza kuti nechikamu chega chega chinotapukira mwana paanokura, pane njodzi yekuti maT-cell avo anozo 'kupera simba' uye kusashanda, senge T-seli dzevanhu vakuru, ndosaka zvakakosha kubaya nhomba. vana.

Iwo immune system ine nzira mbiri, ine innate immune system iri mutsara wekutanga wedziviriro, unosanganisira zvipingamupinyi zvemuviri zvakaita seganda uye mucous nzvimbo dzinodzivirira hutachiona kupinda. Inosanganisira masero anoita makemikari ekutumira zviratidzo kune mamwe masero uye kudzivirira mavhairasi. Asi immune system yomuzvarirwo haisiyanisi pakati pemhando yehutachiona kana imwe.

Mutsara wechipiri wekudzivirira unosanganisira B uye T masero eiyo adaptive immune system. Aya maseru ane mareceptor chaiwo anogona kuziva uye kumaka zvikamu zvakasiyana zvehutachiona uye kuunza mhinduro nekukurumidza kudzikamisa kana kudzideredza.

Vatsvagiri vakaona kuti masoja ekudzivirira evacheche akafanana ne "isina slate" ine chikamu chepamusoro chemasero e-naïve T. Pavanofamba muhudiki kusvika vakura uye vachisangana nemavhairasi akawanda, masero avo anonzi naïve T anotsiviwa nememory T masero anokwanisa kupindura mavhairasi aakamboona.

Mumwe Purofesa Philip Britton, chiremba wezvirwere zvinotapukira zvevana paWestmead Children's Hospital, anotsanangura kuti: “Masoja evana anodzivirira zvirwere anobva pakutsamira zvikuru pagadziriro yomuzvarirwo, kuenda pakuda gadziriro yokugadziridza segadziriro yokuchengeta sezvavanokura nokudaro havakwanisi kubvisa mavhairasi. ".

dambudziko muvanhu vakuru

Sezvineiwo, mhedzisiro yechidzidzo ichi inoratidza kuti chikonzero chehutachiona hwevakuru imhando yekunyanya kuita immune kuhutachiona hweSARS-CoV-2, sekutaura kwaProfessor Fan kuti "kana vanhu vakuru vanotanga kutapukirwa nehutachiona hweSARS-CoV-2. , ndangariro dzavo T masero anoona pane zvavakamboona, semuenzaniso, chikamu chakajairika chekoronavirus iripo neyakajairwa mavhairasi echando," akadaro, achitsanangura kuti zvingadaro nekuti immune system "inovhara yakarasika. mhinduro isina kunangana neSARS-CoV-2, zvichiita kuti Inopa mukana wekuti hutachiona hupukunyuke uye kuwanda husina kutariswa kuti ukonzerese zviratidzo zvakanyanya apo immune system inokwira kuyedza kugadzirisa dambudziko.

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