EG.5 yana yaduwa cikin sauri, amma masana sun ce ba shi da haɗari fiye da nau'ikan da suka gabata.Wani sabon bambance-bambancen, mai suna BA.2.86, an sa ido sosai don maye gurbi.
Akwai damuwa da yawa game da bambance-bambancen Covid-19 EG.5 da BA.2.86.A cikin watan Agusta, EG.5 ya zama babban bambance-bambance a Amurka, tare da Hukumar Lafiya ta Duniya ta rarraba shi a matsayin "bambance-bambancen sha'awa," ma'ana yana da canjin kwayoyin halitta wanda ke ba da fa'ida, kuma yawancinsa yana karuwa.
BA.2.86 ba ta zama ruwan dare gama gari ba kuma yana da kaso daga cikin lamuran, amma masana kimiyya sun yi mamakin adadin maye gurbi da yake ɗauka.To nawa ya kamata mutane su damu da waɗannan zaɓuɓɓukan?
Duk da yake rashin lafiya mai tsanani tsakanin tsofaffi da waɗanda ke da yanayin rashin lafiya koyaushe abin damuwa ne, kamar yadda yanayin dogon lokaci na kowane mai kamuwa da COVID-19, masana sun ce EG.5 ba ta haifar da wata babbar barazana, ko aƙalla.Zaɓuɓɓukan farko mafi rinjaye a halin yanzu zai haifar da babbar barazana fiye da kowane.
Andrew Pekosh, farfesa a ilimin ƙwayoyin cuta da ƙwayoyin cuta a Jami'ar Johns Hopkins, ya ce: "Akwai damuwa cewa wannan ƙwayar cuta tana ƙaruwa, amma ba kamar kwayar cutar da ke yawo a Amurka ba tsawon watanni uku zuwa huɗu da suka gabata."… Babu bambanci sosai. ”Makarantar Kiwon Lafiyar Jama'a ta Jami'ar Bloomberg."Don haka ina ganin shi ya sa na damu da wannan zabin a yanzu."
Hatta Hukumar Lafiya ta Duniya ta ce a cikin wata sanarwa da ta yi la’akari da bayanan da ake da su, “an yi kiyasin hadarin lafiyar jama’a da EG.5 ke haifarwa ya yi kasa a duniya.”
An gano bambancin a China a watan Fabrairun 2023 kuma an fara gano shi a Amurka a cikin Afrilu.Yana da zuriyar Omicron's XBB.1.9.2 bambance-bambancen kuma yana da sanannen maye gurbi wanda ke taimaka masa ƙauracewa ƙwayoyin rigakafin ƙwayoyin cuta daga bambance-bambancen da suka gabata da alluran rigakafi.Wannan rinjaye na iya zama dalilin da ya sa EG.5 ya zama babban nau'i a duniya, kuma yana iya kasancewa daya daga cikin dalilan da ya sa sababbin shari'o'in kambi ke sake karuwa.
Maye gurbin "na iya nufin mutane da yawa za su iya kamuwa da cutar saboda kwayar cutar na iya guje wa ƙarin rigakafi," in ji Dr. Pecos.
Amma EG.5 (wanda aka fi sani da Eris) baya bayyana yana da wani sabon yuwuwar ta fuskar kamuwa da cuta, alamomi, ko kuma iya haifar da mummunar cuta.A cewar Dr. Pekosh, gwaje-gwajen bincike da jiyya irin su Paxlovid har yanzu suna da tasiri.
Dokta Eric Topol, mataimakin shugaban zartarwa na Cibiyar Nazarin Scripps a La Jolla, Calif., Ya ce bai damu da zabin ba.Koyaya, zai ji daɗi idan sabon tsarin rigakafin, wanda ake sa ran fitar da shi a cikin bazara, ya riga ya kasance a kasuwa.An ɓullo da haɓakar haɓakawa bisa wani bambance-bambancen daban-daban kama da kwayar halittar EG.5.Ana sa ran zai samar da ingantacciyar kariya daga EG.5 fiye da rigakafin bara, wanda ya yi niyya ga asalin nau'in coronavirus da Omicron na baya, wanda ke da alaƙa kawai.
"Babban damuwa na shine yawan jama'a masu haɗari," in ji Dokta Topol."Alurar rigakafin da suke samu tayi nisa daga inda kwayar cutar ta ke da kuma inda za ta."
Wani sabon bambance-bambancen da masana kimiyya ke sa ido a kai shine BA.2.86, mai lakabin Pirola.BA.2.86, wanda aka samo daga wani bambance-bambancen Omicron, an danganta shi da lamuran 29 na sabon coronavirus a cikin nahiyoyi huɗu, amma masana suna zargin yana da mafi girman rarraba.
Masana kimiyya sun ba da kulawa ta musamman ga wannan bambance-bambancen saboda yawan adadin maye gurbin da yake ɗauka.Yawancin waɗannan ana samun su a cikin furotin mai karu da ƙwayoyin cuta ke amfani da su don cutar da ƙwayoyin jikin mutum kuma tsarin garkuwar jikin mu ke amfani da shi don gane ƙwayoyin cuta.Jesse Bloom, farfesa a Cibiyar Ciwon daji ta Fred Hutchinson wanda ya ƙware a juyin halittar hoto, ya ce maye gurbi a BA.2.86 yana wakiltar "tsallewar juyin halitta mai girman girman" daga ainihin nau'in cutar sankara idan aka kwatanta da canji a bambance-bambancen farko na Omicron.
Bayanan da masana kimiyyar kasar Sin suka buga a wannan makon a shafin X (wanda aka fi sani da Twitter) sun nuna cewa BA.2.86 ya sha bamban da nau'in kwayar cutar da ta gabata, ta yadda a sauƙaƙe ke guje wa ƙwayoyin rigakafi da aka yi wa kamuwa da cuta a baya, har ma fiye da EG.5. gudun hijira.Shaida (har yanzu ba a buga ba ko kuma an sake duba takwarorinsu) sun nuna cewa sabbin alluran rigakafin su ma ba za su yi tasiri a wannan fanni ba.
Kafin ka yanke ƙauna, bincike ya kuma nuna cewa BA.2.86 na iya zama ƙasa da yaduwa fiye da sauran bambance-bambancen, kodayake binciken a cikin sel na lab ba koyaushe ya dace da yadda kwayar cutar ke nunawa a duniyar gaske ba.
Kashegari, masana kimiyyar Sweden sun buga akan dandamali X ƙarin sakamako masu ƙarfafawa (kuma ba a buga su ba kuma ba a gani ba) suna nuna cewa ƙwayoyin rigakafin da mutanen da suka kamu da cutar Covid ke samarwa suna ba da wasu kariya daga BA.2.86 lokacin da aka gwada su a cikin dakin gwaje-gwaje.kariya.Sakamakonsu ya nuna cewa ƙwayoyin rigakafin da sabuwar allurar ta samar ba za su zama marasa ƙarfi ga wannan bambance-bambancen ba.
"Wani yanayi mai yiwuwa shine cewa BA.2.86 ba shi da yaduwa fiye da bambance-bambancen yanzu kuma saboda haka ba za a taba rarrabawa ba," Dr. Bloom ya rubuta a cikin imel zuwa New York Times."Duk da haka, yana yiwuwa kuma wannan bambance-bambancen ya yadu - kawai za mu jira ƙarin bayanai don ganowa."
Dana G. Smith mai ba da rahoto ce ta mujallar Lafiya, inda ta rufe komai daga hanyoyin kwantar da hankali zuwa yanayin motsa jiki da Covid-19.Kara karantawa game da Dana G. Smith
Lokacin aikawa: Satumba-05-2023