Ci gaba a cikin allurar rigakafi don coronavirus 'alƙawari'

Gwajin gwaji na asibiti kashi-biyu na dan takarar rigakafin COVID-19 wanda Kwalejin Kimiyyar Kiwon Lafiyar Soja da kamfanin fasahar kere-kere ta kasar Sin CanSino Biologics suka kirkira ya gano cewa ba shi da lafiya kuma yana iya haifar da amsawar rigakafi, bisa ga binciken da aka buga a mujallar kiwon lafiya ta Lancet. Litinin.

Hakanan a ranar Litinin, The Lancet ta buga sakamakon gwajin kashi-na ɗaya da kashi-biyu na gwaji na asibiti iri ɗaya na maganin rigakafi na adenovirus wanda masana kimiyya a Jami'ar Oxford da kamfanin AstraZeneca suka haɓaka.Wancan rigakafin ya kuma nuna nasara cikin aminci da ƙarfi a kan COVID-19.

Masana sun kira wadannan sakamakon "alƙawari".Duk da haka, tambayoyi masu mahimmanci sun kasance, kamar tsawon lokacin kariyarsa, adadin da ya dace don haifar da amsawar rigakafi mai karfi da kuma ko akwai bambance-bambance na musamman kamar shekaru, jima'i ko kabilanci.Za a bincika waɗannan tambayoyin a cikin gwaji mafi girma na mataki-uku.

Wani allurar rigakafi na adenovirus yana aiki ta hanyar amfani da ƙwayar cuta mai rauni ta gama gari don shigar da kwayoyin halitta daga sabon coronavirus cikin jikin ɗan adam.Manufar ita ce a horar da jiki don samar da ƙwayoyin rigakafi waɗanda ke gane furotin na karu da kuma yaƙar shi.

A gwajin kashi na biyu na allurar Sinawa, mutane 508 ne suka halarci, 253 daga cikinsu sun sami allurar riga-kafi mai yawa, 129 kuma ba su da kashi 126 na placebo.

Kashi 95 cikin 100 na mahalarta cikin rukunin masu yawan allurai da kashi 91 cikin 100 a cikin rukunin marasa ƙarfi suna da ko dai T-cell ko rigakafin rigakafi kwanaki 28 bayan sun karɓi maganin.Kwayoyin T suna iya kaiwa kai tsaye hari da kashe ƙwayoyin cuta masu mamayewa, suna mai da su wani muhimmin sashi na martanin rigakafin ɗan adam.

Marubutan sun jaddada, duk da haka, babu wani mahalarta da aka fallasa ga sabon coronavirus bayan alurar riga kafi, don haka har yanzu ya yi wuri a ce ko ɗan takarar rigakafin zai iya yin kariya sosai daga kamuwa da cutar ta COVID-19.

Dangane da halayen da ba su dace ba, zazzabi, gajiya da ciwon wurin allura wasu daga cikin abubuwan da aka lura da su na maganin alurar riga kafi na kasar Sin, kodayake galibin wadannan halayen sun kasance masu sauki ko matsakaici.

Wani abin lura shi ne cewa tare da vector na allurar kasancewar kwayar cutar sanyi ta gama gari, mutane na iya samun riga-kafin da ke kashe kwayar cutar kafin allurar ta fara aiki, wanda zai iya kawo cikas ga martanin rigakafin.Idan aka kwatanta da matasa, tsofaffin mahalarta gabaɗaya suna da ƙarancin martanin rigakafi, binciken ya gano.

Chen Wei, wanda ya jagoranci aiki kan rigakafin, ya ce a cikin wata sanarwa da aka fitar cewa tsofaffi na iya buƙatar ƙarin kashi don haifar da martani mai ƙarfi na rigakafi, amma ana buƙatar ƙarin bincike don kimanta wannan hanyar.

CanSino, wanda ya kirkiro rigakafin, yana tattaunawa kan kaddamar da gwaje-gwaje na kashi-uku a wasu kasashen ketare, Qiu Dongxu, babban darekta kuma wanda ya kafa CanSino, ya fada a wani taro a Suzhou, lardin Jiangsu, ranar Asabar.

Wani edita mai rahusa a cikin The Lancet kan sabbin binciken rigakafin guda biyu ya kira sakamakon gwajin da aka yi daga China da Burtaniya "mai kama da al'ajabi".