Ama-36% abantu baseFrance baseqenjini le-O + legazi. Laba bantu bangathola kuphela igazi eqenjini O futhi banganikela ngegazi kuphela kwizifundo ze-rh positive (RHD +). Olunye ucwaningo lukhombisa ukuthi abathwali beqembu O bavikeleke kangcono ekuthelelekeni nge-covid-19.

Elinye lamaqembu asakazeke kakhulu eFrance

EFrance, iqembu legazi i-O + liyiqembu lesibili legazi elaziwa kakhulu (ngemuva kweqembu le-A + legazi ngoba liyiqembu legazi labantu abacishe babe ngama-36% abantu baseFrance (uma kuqhathaniswa nama-37% eqembu le-A +). Njengesikhumbuzo, amaqembu egazi ayivelakancane angamaqembu B no-AB ngokulandelana athinta kuphela i-1% yabantu baseFrance.

Umamukeli kuphela ovela eqenjini O

Isihloko seqembu O asinayo i-antigen A noma i-antigen ka-B. Ngakho-ke angathola kuphela igazi eqenjini O ngoba i-serum yakhe iqukethe ama-anti-A nama-anti-B. Phambi kwamangqamuzana abomvu egazi amaqembu egazi u-A, B no-AB, amasosha omzimba awabhubhise sengathi ahlasela igciwane. Sikhuluma nge-hemolysis.

Nikela kuphela ngamaqembu eRhesus +

Isihloko eqenjini le-O + sine-rh positive (RHD +). Ngakho-ke anganikela ngegazi kuphela kwizifundo ezine-rh (RHD) efanayo: ngabantu kuphela u-A +, B +, AB + no-O + abangathola igazi lakhe. Amaseli abomvu. EFrance, i-rh positive (RHD +) ivame kakhulu kune-rh negative (RHD-). Ngempela, cishe Ama-85% abantu baseFrance bane-rh enhle.

Njengesikhumbuzo, uhlelo lweRhesus (RHD) lunqunywa ngokuya ngobukhona noma ukungabikho kwe-antigen ka-D kumaseli abomvu egazi. Uma sithola ifayela le- into D okuyi-antigen ebusweni bamaseli egazi, i-rhesus iyakhanya (RHD +). Lapho ingekho into engu-D ebusweni bamaseli abomvu egazi, i-rhesus ayibi (RHD-).

Iqembu legazi lomuntu lihambelana ne- ama-antigen ekhona noma engekho ebusweni bamaseli ayo abomvu egazi. Iqembu legazi lineqoqo lezakhiwo ezivumela ukuhlukanisa abantu ngabanye ukuze kuchazwe ukuhambisana okuhle ngesikhathi se- ukumpontshelwa igazi.

Amaqembu egazi adluliselwa ngofuzo, ngokwemithetho yezofuzo. Uhlelo lweqembu lwegazi olwaziwa kakhulu uhlelo lwe-rhesus kanye nohlelo lwe-ABO (olubandakanya amaqembu A, B, AB no-O), akhonjwa ngo-1901 njengoKarl Landsteiner (1868-1943), udokotela nongusosayensi wezinto eziphilayo.

Kusukela kwaqala ubhadane lweCovid-19, iqembu lesayensi belinentshisekelo ekuxhumaneni phakathi kweqembu legazi labantu kanye nengozi yokwenza i-covid-19. Ngokuya nge-INSERM, onyakeni owodwa, kucishe kwashicilelwa izifundo ezingamashumi amane ngale ndaba. Omunye walomsebenzi ukhombe kakhulu ekunciphiseni ubungozi kubantu abanohlobo lwegazi O.

Le miphumela isivele iqinisekiswe ukuhlaziywa okuningi kwe-meta.

Olunye ucwaningo lobudlelwano lwe-genome-wide olwenziwe ezigulini ezibhedlela lweCovid-19 uma kuqhathaniswa nabantu abaphilile nalo lukhomba ohlangothini olufanayo. Lo msebenzi ukhombisa ukuthi izifunda ezimbili ze-genome bezihlotshaniswa kakhulu nengozi yokutheleleka, kufaka phakathi indawo ye-chromosome 9 ethwele isakhi sofuzo i-ABO esinquma iqembu legazi.

Uyacelwa ukuthi uqaphele ukuthi iqiniso lokuba seqenjini le-O alikukhululi nganoma iyiphi indlela kwizenzo zokuvimbela, izindlela ezijwayelekile zokuqedwa komphakathi nokugoma. Abantu beqembu O bangatheleleka futhi badlulise negciwane.