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Usulelo lokuphumelela kunye ne-boosters

Iindaba ezimnandi zezokuba idosi epheleleyo yezitofu ezigunyazisiweyo ze-COVID-19 zisasebenza. “Zonke izitofu zokugonya zisebenza kakuhle,” utshilo uJeff Kwong, ugqirha wezifo ezosulelayo kwiDyunivesithi yaseToronto. “Kwaye izitofu zokugonya bezikhusela ngakumbi kwiziphumo ezibi xa kuthelekiswa nolosulelo lweempawu,” uKwong ubonisile kuphononongo, olungekaphononongwa ngoontanga, ukusebenza kwezitofu zePfizer, Moderna, kunye ne-AstraZeneca ngokuchasene nosulelo oluneempawu, ukulaliswa esibhedlele, okanye ukufa phakathi kukaDisemba ka-2020 kunye noMeyi ka-2021.

Uphononongo oluninzi lubonise ukuba izitofu zokugonya zeModerna kunye nePfizer zisakhusela iDelta, nangona kungenjalo ngokunjalo ngokuchasene nokwahluka kwangaphambili. Abantu abangagonywanga benza ngaphezulu kweepesenti ezingama-90 zamatyala amatsha aqinisekisiweyo phakathi kwamazwe alandelela idatha yetyala kunye nesimo sokugonywa.

"[Izitofu] ziyawunciphisa umngcipheko weziphumo ezibi njengokulaliswa esibhedlele kakhulu," utshilo u-Aziz Sheikh, ingcali yokhathalelo oluphambili kwiYunivesithi yase-Edinburgh, eSkotlani, e-UK ebonise ukuba iDelta ibangele ukulaliswa esibhedlele kabini kunokwahluka kwe-Alpha, okubangele ukugula okuqatha kune-SARS-CoV-2 yantlandlolo. Ngokubanzi, bayasebenza. "Oonodoli beSilicone ngesondo

I-CDC iqikelela ukuba ugonyo lwe-COVID-19 lunciphisa umngcipheko wosulelo lwe-SARS-CoV-2 ngokuphindwe kasibhozo kunye nomngcipheko wokugula, ukulaliswa esibhedlele, okanye ukusweleka ngokuphindwe ka-25.

Kodwa uvavanyo olungonelanga kwilizwe lonke lwenza ukuba kube nzima ukwazi ubungakanani bokwenyani bokusasazeka kweDelta kunye nezinye izinto ezahlukeneyo. Xa kukho usulelo oluphezulu lweDelta eluntwini, nabantu abagonywe ngokupheleleyo basesichengeni koko kubizwa ngokuba “lusulelo lokugonya,” oluchazwa yi-CDC njengaxa imathiriyeli yemfuza okanye iprotein evela kwaSARS-CoV-2 ibonakala kwi-swab yeempumlo ngaphezulu kweentsuku ezili-14 emva kokuba umntu efumene idosi ecetyiswayo ye-FDA egunyazisiweyo yogonyo lwe-COVID-19.

Iidosi ezimbini ze-AstraZeneca kunye ne-Pfizer yokugonya kuqikelelwa ukuba yi-60 kunye ne-88 yeepesenti ezisebenzayo, ngokulandelanayo, ngokuchasene nesifo se-symptomatic esibangelwa yi-Delta. Uninzi lwezitofu zokugonya ezilawulwa e-US (i-Moderna kunye ne-Pfizer) zifuna izitofu ezimbini zokhuseleko oluphezulu. Ezi zitofu zingasebenzi kangako ngokuchasene neDelta emva kwejab nje enye, utshilo u-Olivier Schwartz, intloko yeYunithi yeNtsholongwane kunye noKhuseleko e-Institut Pasteur, eParis, okhokele uphononongo olwabonisa ukuba idosi enye ye-AstraZeneca kunye nogonyo lwe-Pfizer okanye usulelo lwangaphambili aluthinteli ukwahluka kweDelta.

Ikhuthazwa yidatha ekuncitshisweni kokuchaneka kwezinto ezahlukeneyo ezinje ngeDelta, iPfizer ifuna ugunyaziso lwedosi ye-booster yesitofu sokugonya. IModerna ikwavavanya idosi ehlaziyiweyo yesitofu sokugonya se-mRNA. Ulawulo lokutya kunye neziyobisi lwase-US (i-FDA) kulindeleke ukuba lugqibezele isicwangciso sokukhuthaza isitofu se-COVID-19 kungekudala.