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).

N:ỒÔW{ỠằằFÕãẶ;ặ{ÝÕOưệÔã:PặÔặắ;%[ÔW:ầ[?Ôe;ắẳằÔW]ắ][ỠÔ}a;Ô[:Ù}ÔYỬẻÔ[:Ỡ[:Ôặ;#[ÔY6Ôặ:dÔeÚWẹ;[N/:ỒONãÔW{ỠằằFÕãqÝỠXÕOọPWÔ[:QÔ>:]ỠÔ:0WÔưệÔYỠ[?Ôã:PặÔặắ;%[Ô}6ặÔW:ầ[?Ô}a;ÔWầỠÔe;ắẳằÔW]ắ][ỠĨÔW"Ôặ:%ÔYẩàWÔXâ[?ÔY%ÔặR]Ô{ƯẻÔ[:;*}ÔW:ầÔY6[?ÔạÔWPWÔặ.[:Ô[?ẳẻ$[Ôe;@[Ôặắ][?ÔWP;Ô?0;Ô{QÔ“:ẳ}Ỡ[ÔW:Ỡ{{Ý[?Ý”ÔLqọẶMJN/ãONãÔW{ỠằằFÕãò]XẻÕON;}?ÔW{ỠằằFÕW}ằ-ã:]ặ]ÕÔặ;ặ{ÝFÕưệÔã:PặÔặắ;%[ÔW:ầ[?Ôe;ắẳằÔW]ắ][ỠÔ}a;Ô[:Ù}ÔYỬẻÔ[:Ỡ[:Ôặ;#[ÔY6Ôặ:dÔeÚWẹ;[Ô:.[:ÔS[:ÔỒÕÔằắWFÕ//WJX:W[Je[/;}?/XÝằ>ặ]ã/X-VỠ]ặ:Ỡ[::]ỠJe[/[Ýéằ/ỘỐỔỘ/ỒỜỜXỚỒỖỔỢỐỚặỔỚỖỜ{ỒJéÝVãÕÔỠ{ặFÕưệÔã:PặÔặắ;%[ÔW:ầ[?Ôe;ắẳằÔW]ắ][ỠÔ}a;Ô[:Ù}ÔYỬẻÔ[:Ỡ[:Ôặ;#[ÔY6Ôặ:dÔeÚWẹ;[ÕÔXỠặỠ-ã:]ặ]-]ắ;?;[Ỡ{-ằắWFÕ:ặặãằỊ//WX[;}?Je;Ýặ[Ỡ}ã{ẳằJe[/ặỚỘỐ/ẳã{]ỠXÝX/:]ặ[[z/ỘỐỘỐ_ỐỢ_ỒƠ/ặặẹe[eỠW_ẹ;[J<ã?ÕÔ/OẶ;@}ÔeÚWẹ;[Ô[?bỠÔọừErỏ-ỒỞÔW:]Ô}6ặÔặ.[:Ô[?ẳẻ$[Ôe;@[ÔặR;Ôq]{{ẻé]]XĨÔVỠ[?Ôỡ{]ắ;XỠĨÔưệĨÔ[?QẻÔỒỔ/Ợ/ỘỐỘỐJÔLh[:ỊÔểỡÃ/ẶẶẸEứMN/ãONãÔW{ỠằằFÕãò]XẻÕOứ?QẻÔỒỖ/ỢĨÔE;$[ÔọPWÔV$[:Ôặắẳẻ=[Ô[:;*}ÔeQÔX!Ôẫ[?Ôăẳ4WÔ?;ỠÔưệÔLứrểrỏMÔW:]ÔV;#ặÔW3[?Ôặắ.[:Ô[?:;@[ÔWẫẳÔặắ@[ÔYỠ[?ÔạÔ?;Ỡ;ÔY]R[ÔYỪẳÔeQÔW:,[:Ôã:ầÔYỠ[?ÔẩẳÔặ;@[Ôe;$WÔW:0[Ô[?ỮẳÔ[:;@[ÔWPWÔẹỲặÔ[?:;$}Ô{Ư}ÔằQ[?ÔWầỠÔWPWÔ“ẫ[?ÔWdÔe;@[”ÔeÚWẹ;[Ô[?bỠÔe;ắẳằÔẰểẮẰ-ọ]E-ỘJN/ãONãÔW{ỠằằFÕãò]XẻÕOư6ặÔằ4ÔeÚWẹ;[ÔYTÔVẩaWÔeQ]Ô?;Ỡ;ÔY]R[ÔWẳ4;ÔWầỠÔ?;Ỡ;ÔY]R[Ôặ:dÔ[?:;$}Ô{Ư}ÔằQ[?ĨÔặắ][?ÔY"ÔW"ÔeÚWẹ;[ÔWầỠÔWPWÔW3[?ÔặẻÔXẩàWÔã:Ử}Ôư]XÝắ[ỠĨÔÃ&;zÝắÔeQÔểằặắỠZÝ[ÝWỠJN/ãONãÔW{ỠằằFÕãò]XẻÕOẶẳẻÔ[:;@[ĨÔứrểrỏÔW:]ÔV;#ặÔWPWÔ[:QÔ>:]ỠÔ:0WÔ“YTÔVÚặÔYỪẳÔ[?:;@[ÔWẫẳÔặR]ÔắỠÔ}6ặÔW:ầ[?Ôe;ắẳằÔW"Ôặ:%ÔYẩàWÔXâ[?ÔeQ]Ôe;$WÔã:PặÔặắ;%[Ô}3Ô:.[:ÔqọẶÔặắ@[ÔW9Ôặ:%Ô[?ẩá;ĨÔ[#ẳÔWỪ[J”N/ãONãÔW{ỠằằFÕãò]XẻÕOẶắ][?ÔWPWÔặ:dÔ[?:;$}Ô{Ư}ÔằQ[?ÔV.[:Ôặ:ẩá[?ĨÔW9Ôặ:%Ôặ.[:Ô[?ẳẻ$[Ôe;@[ÔYẩàWÔặ;#ãÔ[:Ự[Ô}6ặÔ{]R;Ôặ:ẳ4WÔ:]ỤWÔ}6ặÔ?;SÔXẩàWÔeQÔYẩàWÔặ:Ý]ÔX2;ÔằẫWÔ>:1ÝÔặắ][?Ô[:;=ẳÔặ:P[?ÔằỠẳÔY"JÔp;Ỡ;ÔY]R[ÔYỪẳÔặ:dÔ[?:;$}Ôặắ@[Ô}6ặÔ[:"}Ô[:1ÔL>:]S[?ÔƠỐÔ[?ẩá;MÔY%ÔYP[:Ô?;PÔ}ẫWÔY6ÔỠ[Ôặ]Q[Ôặ:cWÔặ#JÔẰỠẳÔY"Ô{QÔ?;Ỡ;ÔY]R[Ô:Ỡ;Ôặ:dÔ[?:;$}Ôea;Ô:Q[?ÔặắU}Ô[?ẩá;ÔeQÔWẳ4;ÔWâ[?Ô{QÔ?;Ỡ;ÔY]R[ÔVỠÔặ:dÔ[?:;$}ÔạÔăẳẻÔ}3Ô:Q[?ÔW:ấWÔ[?:.[Ô[?ẩá;JÔp;Ỡ;ÔY]R[ÔWẳ4;Ô[QẻÔắỨặÔặ4[Ô>Ỳ}Ôặ;=[ÔVRWÔeQÔặ:á;Ô?;Ỡ[ÔeQÔWỪ[Ô}6ặÔ}ỮẳÔYầÔ{a[ÔeQÔYỠÔXR[?Ôe=ÔWPWÔẻ#ẳÔặ4Ô[:Ư[Ô>:ỬẳÔ:0WJN/ãONãÔW{ỠằằFÕãò]XẻÕOọPWÔ[:QÔ>:]ỠÔ:0WÔ[?:;@[ÔWẫẳÔW9ÔW:#Ô:]RặÔY6[?ÔWầỠÔeÚWẹ;[Ô:]ỤWÔặ:ẳ4WÔY;=ẳÔặắ!Ô>:;Ô}6ặÔ[?ẩá;Ôã:9;Ô[:;*}ÔặcÔ[:;@[Ôea;Ôe;ắẳằJN/ãONãÔW{ỠằằFÕãò]XẻÕOẶẳẻÔ[:;@[ĨÔW"Ô}6ặÔWPW:Ô[:Ỡ[:Ô:9[ÔY%Ô>;%}ÔặắỠÔ{;$ẳÔ}6ặÔ{]R;Ôặ:ẳ4WÔ:ỠẻÔeÚWẹ;[ÔW"Ô:]RặÔY6[?Ô:;$ẳÔăẳSÔ:ỠẻÔ>:3[?Ô{QÔqọẶÔ-ÔặẫWÔ{QÔW:ầÔY6[?ÔYẩỠÔe;ắẳằÔeQ]ÔW9Ôặ:%Ôặ.[:Ô[?ẳẻ$[Ôe;@[ĨÔ[:ẩÔYTÔặ:cWÔ:;$[Ôea;ÔWPWÔV$[:ÔWẵ}ÔĨÔằ4ặÔắỲặÔĨÔặ:ẩ9[?Ô:Q[ĨÔằ4ặÔẹẳỨặÔ:ẳẻ#ặÔeQÔặSJN/ãONãÔW{ỠằằFÕãò]XẻÕOÃ:ẩ9[?Ôã:PãÔ[QẻÔặ:ẩá[?ÔYẩàWÔặ;#[Ô:Q[:Ôea;Ô}6ặÔe;ắẳằÔYỠ[?Ô>:3[?Ô{Ỡ[Ôặắẳẻ=[Ô}R[:Ôặắ][?ÔW6[?ÔY5[?ĨÔ:]ỤWÔặắẩaWÔY"ÔYTÔW"ÔWPWÔã:ẩ9[?Ôã:PãÔY;=ẳÔặắ!ÔYTÔYẩàWÔ>;%}ÔW:ẫ[?ÔặắẩaWÔY"JN/ãONãÔW{ỠằằFÕãò]XẻÕOẶR;ÔưệĨÔW"Ô[:;=ẳÔ[:"}ÔeỰ[ÔY6[?Ô[:ẩÔỒỏỠẻẰ]][ÝắÔầ[?Ô:6ÔWPWÔ[?:;@[ÔWẫẳÔqọẶÔY4;Ôea;ÔV$[:ÔọừErỏ-ỒỞÔ[:Ù}Ô?;ẵãÔằa}ÔW"ÔeÚWẹ;[Ôã: [?ÔV$[:ĨÔ[:ẩ[?ÔWPW:Ô{Q}Ô[QẻÔeỮ[Ô?ƯẻÔặắỠ[:ÔWT;Ôe.Ô>:3[?Ôặ:%ÔV;#ặÔặắẩaWÔ}ẫWÔY6Ô[?:;@}Ôặắ0[?ÔWầỠÔV$[:ÔeQÔW:ẩỠÔ:;%ẳÔ:#ặÔWPWÔặPWÔY6[?ÔWầỠÔV$[:ÔWậ[?Ô[:ẩÔW:ẩỠÔW"Ôặ:ẳ4WÔW:đỠJN/ãONãÔW{ỠằằFÕãò]XẻÕOứ?]Q;ÔắỠĨÔặ:Ý]Ô[?ẩá;ÔYẫ[?ÔYỪẳÔủ:]ỠÔứ?:;@[ÔWẫẳÔặ:dÔ[?:;$}ÔeÚWẹ;[ÔWầỠÔõR;Ô:0WÔpÝ]ắ?ÝÔÉỠằ:;[?ặ][ĨÔ3[?ÔỏỠe;XÔỏ;Ý}ÝắặĨÔ:;$[ÔạÔưệÔW"ÔX;$[Ô{ƯẻÔ[:;*}Ôắ6[?Ôặắ][?ÔW6[?ÔY5[?Ô[@[Ô>:3[?ÔWỪ[ÔY#[ÔWPWÔặ:dÔ[?:;$}ÔqọẶJN/ãONãÔW{ỠằằFÕãò]XẻÕOứrểrỏÔW:]ÔV;#ặÔằỸÔW"Ôặ:%ÔYẩỠÔắỠÔăẳẻ#ặÔY![:Ôe=Ôe;$WÔ[QẻÔeQ]ÔWẳ4;Ô[U}Ô[ỠẻĨÔ>:;ÔWPWÔặ:dÔ[?:;$}Ô{Ư}ÔằQ[?Ô?;Ỡ;ÔY]R[ÔWẳ4;ÔVÚặÔYỪẳÔW:]Ô>#ặÔăẳSJÔõ;=ẳÔ[QẻÔằỸÔ?;ẵãÔẹPWÔY![:Ô{;$ẳÔWPWÔặ:dÔ[?:;$}ÔqọẶÔW"ÔWỪ[Ôặ:;#ặĨÔỠ[Ôặ]Q[ÔeQÔã:âÔ:àãÔea;ÔW:ẳỬ[Ô}cWÔYR]ÔYẫWÔ:ỠẻÔ>:3[?JN/ãONãÔW{ỠằằFÕãò]XẻÕOẶắ][?Ô}6ặÔX;*[ÔV;#[Ô>:PWĨÔ}6ặÔ[?:;@[ÔWẫẳÔặR;Ôặ:!ÔặắỨ[Ôủẳã&ÝắzÝ{{ĨÔVỠ[?ÔòỠXÝ[Ô-ÔÉẳÝắặặÝ}VÝắ?ĨÔ};=[ÔứỠ}Ô[ẩaWÔõẫWĨÔe4[Ô{QÔ}6ặÔY;%}Ô["[?ÔọừErỏ-ỒỞĨÔW:]Ôặ:ỨẻÔỜĨỜHÔ[?ẩá;ÔXƯ[ÔY!ỠÔã:ẩ9[?ÔW"Ô>:P[?Ôặ:%ÔW:4[?Ôe;ắẳằÔẰểẮẰ-ọ]E-ỘJN/ãONãÔW{ỠằằFÕãò]XẻÕOứ?QẻÔỒỖ/ỢĨÔE;$[ÔẮ]VÝắặÔủ]W:ÔLẮủrMĨÔW9ÔăẳỠ[ÔW:,[:Ôã:ầÔ{;@[ÔVỠ[?Ôe=Ôã: [?ÔeQÔ>;%}Ôằ]PặÔX!W:ÔV$[:ĨÔW:]ÔV;#ặÔ?Ừ[ÔỒỜHÔ[?ẩá;Ôã:PặÔ:;$[ÔW"Ô>:P[?Ôặ:%Ôặ,W:ÔWcWÔ{QÔ[:đ[?Ô[?ẩá;Ô>:3[?ÔW"Ôặắ;$ẳÔW:ẫ[?ÔV$[:ÔY;%[Ô:.[:ĨÔặắ][?Ô>:;ÔặỨặÔWSÔ[:đ[?Ô[?ẩá;Ô>:PWÔW"Ô,ặÔ[:ỨặÔ}6ặÔặắ;$ẳÔW:ẫ[?Ô[:ẩÔằ4ặĨÔ:]ĨÔ>:"Ôặ:ạJN/ãONãÔW{ỠằằFÕãò]XẻÕOẶẳẻÔ[:;@[ĨÔÃ:"Ôp;P}ÔY4WÔE;$[ÔẮủrÔũỠắằÔẰW:ỠỠXÝÔW:]ÔV;#ặÔ[?ỠẻÔWSÔ>:;Ô?;SÔY![:ÔắÙ[?Ô[?ẩá;ÔW"Ô>:P[?Ôặ:%ÔằỸÔ};*[ÔX!W:Ôea;Ôe;ắẳằÔeQÔPãÔXấ[?ÔY;=ẳÔ[QẻÔea;ÔặỨặÔWSÔ}0;Ô[?ẩá;ÔạÔõẫWĨÔWậ[?Ô“>:3[?ÔYầÔY%Ô[?U[ÔW:Ụ[Ô{Q[Ôằ"[?Ôặ:ẫÔ:Ỡ;”ÔạÔ[ẩaWÔ[QẻJN/ãONãÔW{ỠằằFÕãò]XẻÕOq9[Ô[đỠĨÔ[?:;@[ÔWẫẳÔW:]Ôặ:ỨẻÔỘỢĨỘHÔ[?ẩá;Ôặắẩạ[?Ôặ:Q[:Ô[:;*}Ôe;ắẳằÔ[:ẩ[?ÔW9Ôặ:%Ô>:3[?ÔặR]ÔắỠÔ>:P[?Ôặ:%ĨÔXâÔY;=ẳÔ[QẻÔ>:3[?ÔW"Ô[?:)ỠÔ{QÔ:0Ô>:3[?ÔW"Ô};*[ÔX!W:JN/ãONãÔW{ỠằằFÕãò]XẻÕOứ#ẳÔẹỲặÔặ:Ý]Ô?;a;Ôặ,[:ĨÔ[?:;@[ÔWẫẳÔW:]Ôặ:ỨẻÔ>:P[?Ôặ:%ÔYẩàWÔã:PặÔ:;$[ÔạÔ[đÔ?;a;ÔLỢĨỜHMÔWỠ]Ô:9[Ô[Ỡ}Ô?;a;ÔLỚĨỜHMJÔứ?:;@[ÔWẫẳÔặắ@[ÔWậ[?Ôã:PặÔ:;$[ÔắÙ[?Ôằ4ÔWỠÔ[:;*}ÔWỠ]Ô?ỨãÔỔĨỞÔ{Ừ[Ôằ]Ôea;Ô[:đ[?ÔW][Ôằ4Ôặ:4[?Ô>@ÔW:,[:Ôặ:ẫWÔặR;Ôủẳã&ÝắzÝ{{ĨÔặ:!ÔặắỨ[ÔW"Ô?Ừ[ÔỚJỐỐỐÔXƯ[J/JN/ãONãÔW{ỠằằFÕãểẳặ:]ắÕOLẶẶẸEứ/E;Ýặ[Ỡ}+MN/ãO