Mỹ phát triển chủng virus corona mới nhằm đẩy nhanh tiến độ thử vắcxin

(TTXVN/Vietnam+) 14:38 15/08/2020

Các nhà khoa học Mỹ đang phát triển một chủng mới của virus corona, có thể được dùng để tạo lây nhiễm chủ động ở các tình nguyện viên trong cái gọi là "human challenge" (HCT).

ỀVÌIQ@O11ẨH"wW2@THỆơấI"VÓ2I20WỪ=IQV7=ỮIãW031IQ$0$=OI#>WI=VỒ#ISỞằI=VO=VI2WŨ=IS!I2VạIãỐQắW=Ề/VÌỆỀ"IQ@O11ẨH"òTORHỆfÓQI=VÒIỸV$OIV&QIơấISO=ỮI"VÓ2I20WỪ=I#!2IQV7=ỮI#>WIQ7OIãW031IQ$0$=OẸIQ%I2VỪIS9}QIR5=ỮISỪI2Ọ$I@ƠằI=VWỰ#IQV7IS!=ỮI[IQÓQI2Y=VI=Ữ3ằỨ=IãWỦ=I20$=ỮIQÓWIỮ&WI@ÒI“V3#O=IQVO@@T=ỮT”IÊòfwẾẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆỀW#ỮIQ@O11ẨHQ#1-"V$2$HI2W2@TẨHơấI"VÓ2I20WỪ=IQV7=ỮIãW031IQ$0$=OI#>WI=VỒ#ISỞằI=VO=VI2WŨ=IS!I2VạIãỐQắW=IVY=VIỎ=VIÌHI10QẨH//QẺRVQ=Ẻã=/W#Ữ/RT1Ỹ2$"/=Tă1/ỊÍỈỊ/ÌLLRKÌĨỈMÍK2ỈKĨL@ÌẺăTP"HIO@2ẨHơấI"VÓ2I20WỪ=IQV7=ỮIãW031IQ$0$=OI#>WI=VỒ#ISỞằI=VO=VI2WŨ=IS!I2VạIãỐQắW=HIRO2O-"V$2$-$0WỮW=O@-10QẨHV22"1E//QR=W#ỮẺãWT2=O#"@31Ẻã=/2KỊÍ/3"@$ORTR/V$2==z/ỊÍỊÍ_ÍM_ÌJ/22ắã=ãOQ_ắW=ẺỶ"ỮHI/ỆwWỦ#IãỐQắW=I=ỮáOIfờÃọg-ÌNIQV$I#!2I2Y=VI=Ữ3ằỨ=IãWỦ=I2ỌWIò$@@ằă$$RẸIPO=ỮIo@$0WROẸIơấẸI=ỮÒằIÌỈ/M/ỊÍỊÍẺIÊb=VEIầoự/wwẮÃớẾỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆớỮÒằIÌĨ/MẸIÃWỨ=IfÓQIPỨ=VI203ằƯ=I=VWỰ#IãÒIRÝIa=ỮI 3,QIỮWOIơấIÊớọầọgẾIQV$IPWŨ2IQ;=ỮI20Y=VI=ỮVWỦ=IQa3I20Ủ=ISO=ỮI[IỮWOWIS$Ọ=ISỜ3IãÒIQVX=VI"V7ISO=ỮI93I2WỦ=IãWỨQIQV&=I=ỮỠ3I=VWỦ=IQÓQIắU2I=ỮVWỨ#I@Ơ#I1Ò=ỮIQ7OIQÓQI“a=ỮIQạIãWỦ=”IãỐQắW=I=ỮáOIãW031Ivầữv-f$Ã-ỊẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆơ!2I1,IãỐQắW=ISÕIP9>QIãÒ$IỮWOWIS$Ọ=IQ3,WIQ7OIỮWOWIS$Ọ=I2VạI=ỮVWỨ#I@Ơ#I1Ò=ỮẸI20$=ỮIS%IQ%IãỐQắW=IQ7OIQÓQIQ;=ỮI2ằIR9}QI"VỞ#Iơ$RT0=OẸIựỬWzT0IãÒIầ120OZT=TQOẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆw3ằI=VWỦ=ẸIớọầọgIQV$IPWŨ2IQÓQI=VÒIỸV$OIV&QI“SÕIPỐ2ISỜ3I=ỮVWỦ=IQa3I2Ọ$I0OI#!2IQV7=ỮIãW031IQ%I2VỪIS9}QIR5=ỮIãÒ$IãWỨQI"VÓ2I20WỪ=I#;IVY=VIòfwI20Ủ=IQ<I2VỪI=Ữ9{WẸI=Ũ3IQỜ=Ẻ”Ề/"ỆỀ"IQ@O11ẨH"ễ$RằHỆw0$=ỮIQÓQI2VạI=ỮVWỨ#I@Ơ#I1Ò=ỮIPY=VI2V9{=ỮẸIQ<I2VỪI2Y=VI=Ữ3ằỨ=IãWỦ=IS9}QI2WŨ"I=VỢ=I#!2I@$ỌWI2V3,QIV$ỘQI#!2IỮWỎIR9}QIãÒIS9}QI2VT$IR:WI1aQIỸV?TI20$=ỮI=VWƯ3I2VÓ=ỮI1O3IS%ẺIóWOWIS$Ọ=ISỜ3I2VạI=ỮVWỨ#I20Ủ=I#!2I=V%#I=V?IÊỸV$Ỏ=ỮIJÍI=Ữ9{WẾISỪISÓ=VIỮWÓI#aQIS!IO=I2$Ò=I2VàQI2ŨẺIvO3IS%I@ÒIỮWOWIS$Ọ=IVOWI2VạI=ỮVWỨ#Iã>WIVÒ=ỮI20Ô#I=Ữ9{WIãÒIQ3,WIQ5=ỮI@ÒIỮWOWIS$Ọ=IPOI2VạI=ỮVWỨ#I[I 3ằI#;IVÒ=ỮIQV6QI=ỮVY=I=Ữ9{WẺIóWOWIS$Ọ=IQ3,WI=ÒằI0Ớ2I2,=IỸU#I2WƯ=IPỌQIãÒI2V{WIỮWO=IãÒIQỜ=I#!2I#Ỡ3IS7I@>=IãÒISOIRỌ=ỮIãƯIQÓQIằŨ3I2,I=VƠ=IỸVỞ3IV&QẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆfÓQI=VÒIỸV$OIV&QI=ỮVWỦ=IQa3IQ<IQVŨIV$Ọ2IS!=ỮIQ7OIãỐQắW=IV$ỘQI2V3,QISWƯ3I20ÝIỸVWI#!2I=Ữ9{WI"V<WI=VWỰ#I2àI=VWỦ=Iã>WIãW031ẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆw3ằI=VWỦ=ẸIQ%I#!2IQÓQVI=VO=VIV<=ISỪIỸWỪ#I20OI@WỨ3I#!2I@$ỌWI2V3,QIVOằIãỐQắW=IQ%IV$Ọ2IS!=ỮIVWỨ3I 3ỎIVOằIỸV;=ỮI@ÒIòfwI-I2aQI@ÒIQV7IS!=ỮIS9OIãW031IãÒ$IQ<I2VỪI2Y=VI=Ữ3ằỨ=IãWỦ=ẸI=V9ISÕI2VàQIVWỨ=Iã>WIQÓQIPỨ=VIQ4#IẸI1,2I0U2IẸI2V9<=ỮIVÒ=ẸI1,2Iắ3Ớ2IV3ằŨ2IãÒI2ỎẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆựV9<=ỮI"VÓ"I=ÒằI2V9{=ỮIS9}QI2WŨ=IVÒ=VIã>WI#!2IãW031ISO=ỮIỸV;=ỮI@O=I203ằƯ=I#Ọ=VI20$=ỮIQ!=ỮIS.=ỮẸIV$ỘQI209>QIS%ISÕIQ%IQÓQI"V9<=ỮI"VÓ"ISWƯ3I20ÝISÕIS9}QIỸWỪ#IQVa=ỮI209>QIS%ẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆwỌWIơấẸIQ%I=VWƯ3I=V%#IãỢ=IS!=ỮI=V9IÌgOằv$$=T0I7=ỮIV!IQÓQI=ỮVWỦ=IQa3IòfwIS,WIã>WIPỨ=VIfờÃọg-ÌNI=VỒ#IỮW4"I1>#IQ%IãỐQắW=I"V*=ỮIPỨ=VẸI=V9=ỮIQÓQVI@Ò#I=ÒằIãỠ=IỮƠằI20O=VIQÕWIãYIỸV;=ỮI2VỪIPWŨ2I209>QI#aQIS!I=ỮVWỦ#I20&=ỮIQ7OIPỨ=VIãÒIQV9OIVWỪ3IVŨ2IQÓQI2ÓQIS!=ỮIQ7OIPỨ=VIQ8=ỮI=V9IQV9OIQ%I2V3,QIQVảOẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆớỮ$ÒWI0OẸI2VT$I=Ữ9{WISa=ỮISỜ3IổV$OIớỮVWỦ=IQa3I2VạI=ỮVWỨ#IãỐQắW=IQ7OIhỌWIV&QIóT$0ỮTIĂO1VW=Ữ2$=ẸI;=ỮIgOãWRIgWT#T02ẸIVWỨ=I[IơấIQ%IRWỨ=I@ƠằI=VWỰ#I0!=ỮI20$=ỮIQ!=ỮIS.=ỮI=Ủ=IỸV;=ỮIQỜ=ISŨ=IQÓQI2VạI=ỮVWỨ#IòfwẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆớọầọgIQV$IPWŨ2I1ỤIQ%I2VỪIS9OI0OI 3ằŨ2ISÝ=VIãƯIãWỨQI=ÒằIãÒ$IQ3,WI=Ô#I=OằẸIỸVWIQÓQI2VạI=ỮVWỨ#I@Ơ#I1Ò=ỮIỮWOWIS$Ọ=IQ3,WIPỐ2ISỜ3IQV$IỸŨ2I 3ỎẺIhWƯ3I=ÒằI1ỤIỮW4"IắÓQISÝ=VI@WỨ3IQÓQI2VạI=ỮVWỨ#IòfwIQ%IQỜ=I2VWŨ2ẸIO=I2$Ò=IãÒI"V5IV}"Iã>WIQV3Ở=I#àQISỌ$ISaQIVOằIỸV;=ỮẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆw0$=ỮI#!2IRWỰ=IPWŨ=IỸVÓQẸI#!2I=ỮVWỦ=IQa3I2ỌWI2VÝI20Ớ=Iổ3"ỬT0zT@@ẸIPO=ỮIễORT=I-IĂ3T022T#PT0ỮẸI#WƯ=IớO#I=9>QIhaQẸIã,=I@ÒI#!2ISWỪ#I=%=ỮIfờÃọg-ÌNẸIQV$I2VỚằILẸLBI=Ữ9{WIRƠ=ISÝOI"V9<=ỮIQ%IỸVÓ=ỮI2VỪIQV,=ỮIãW031Ivầữv-f$Ã-ỊẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆớỮÒằIÌĨ/MẸIÃWỨ=Iữ$PT02Iổ$QVIÊữổọẾẸIQ<I 3O=IQVX=VI"V7I@WỦ=IPO=ỮIãƯI"V*=ỮIãÒIỸWỪ#I1$Ó2IRÝQVIPỨ=VẸIQV$IPWŨ2IỮỜ=IÌLBI=Ữ9{WI"VÓ2IVWỨ=IQ%IỸVÓ=ỮI2VỪI2XQVIQàQI@ÒI=Vả=ỮI=Ữ9{WIỸV;=ỮIQ%I20WỨ3IQVa=ỮIPỨ=VISWỪ=IVY=VẸI20$=ỮIỸVWI2Ớ2IQỎI=Vả=ỮI=Ữ9{WIỸVÓQIQ%IX2I=VỚ2I#!2I20WỨ3IQVa=ỮI=V9I1,2ẸIV$ẸIỸV%I2V[ẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆw3ằI=VWỦ=ẸIựV%IóWÓ#IS,QIÃWỨ=IữổọIỗO01IvQVOORTIQV$IPWŨ2I=ỮOằIQỎIỸVWIỮWỎISÝ=VI0Ồ=ỮI=Ữ9{WIQ%IỸVÓ=ỮI2VỪI1ỤI#WỰ=IRÝQVIã>WIãW031IãÒIÓ"IR6=ỮISWƯ3I=ÒằIã>WI2Ớ2IQỎI#&WI=Ữ9{WI[IhaQẸIQ8=ỮI“ỸV;=ỮIS7ISỪI=ỮÔ=IQVỘ=I@Ò=I1%=ỮI2VaIVOW”I[I=9>QI=ÒằẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆò<=I=ảOẸI=ỮVWỦ=IQa3IQV$I2VỚằIỊMẸỊBI=Ữ9{WI209[=ỮI2VÒ=VI=VWỰ#IãW031I=V9=ỮIQ<I2VỪIỸV;=ỮI2Ọ$I0OIỸVÓ=ỮI2VỪẸIR5ISWƯ3I=ÒằIỸV;=ỮIQ%I=ỮVỴOI@ÒIV&IỸV;=ỮIQ%I#WỰ=IRÝQVẺỀ/"ỆỀ"IQ@O11ẨH"ễ$RằHỆớŨ3IắU2I2VT$IỮW>WI2X=VẸI=ỮVWỦ=IQa3IQV$I2VỚằIỸVÓ=ỮI2VỪIS9}QI"VÓ2IVWỨ=I[I=ảIỮW>WIÊMẸLBẾIQO$IV<=I=O#IỮW>WIÊKẸLBẾẺIớỮVWỦ=IQa3I20Ủ=IQ8=ỮI"VÓ2IVWỨ=I0Ồ=ỮI1,IQOI=VWỰ#IQO$IỮỚ"IỈẸNI@Ờ=I1$Iã>WI=Vả=ỮIQ$=I1,I2V,=ỮIỸỦIQVX=VI2VaQI2ỌWIổ3"ỬT0zT@@ẸI2VÝI20Ớ=IQ%IỮỜ=IKẺÍÍÍIRƠ=Ẻ/ẺỀ/"ỆỀ"IQ@O11ẨH"ầ32V$0HỆÊwwẮÃớ/ÃWT2=O#+ẾỀ/"Ệ