| Bai vi?t nay
c?n đ??c
c?p nh?t
do co ch?a cac thong tin co th? đa l?i th?i hay khong con chinh xac n?a.
B?n co th? giup Wikipedia b?ng cach
c?p nh?t
cho bai vi?t nay.
(
thang 11/2022
)
|
Bi?n th? Delta SARS-CoV-2
, c?ng đ??c bi?t đ?n v?i ten g?i
bi?n th? dong B.1.617.2
, la m?t
bi?n th?
c?a
dong B.1.617
c?a
SARS-CoV-2
, lo?i
virus
t?o ra b?nh
COVID-19
.
[1]
Bi?n th? nay đ??c phat hi?n l?n đ?u tien t?i ?n đ? vao cu?i n?m 2020.
[2]
[3]
T? ch?c Y t? Th? gi?i
(WHO) đ?t ten la bi?n ch?ng delta vao ngay 31 thang 5 n?m 2021.
Bi?n th? nay co đ?t bi?n trong gen ma hoa
protein gai
SARS-CoV-2
[4]
lam thay th? cac đo?n ma T478K,
P681R
va
L452R
,
[5]
ma đ??c cho la co ?nh h??ng đ?n kh? n?ng lay truy?n c?a virus c?ng nh? ?nh h??ng đ?n kh? n?ng cac khang th? đ?i v?i cac bi?n th? đa l?u hanh tr??c đay c?a vi rut COVID-19 co th? phong ch?ng đ??c no hay khong.
[6]
[
khong kh?p v?i ngu?n
]
Public Health England
(PHE) thong bao vao thang 5 n?m 2021 r?ng bi?n th? m?i nay co
t? l? t?n cong
th? c?p cao h?n 51?67% so v?i
bi?n th? alpha
.
[7]
Trong m?t cu?c h?p bao k? thu?t vao thang 6, cac nha nghien c?u thong bao bi?n th? delta co lien quan đ?n vi?c t?ng g?n g?p đoi nguy c? nh?p vi?n c?a ng??i b? lay nhi?m.
[8]
Vao ngay 7 thang 5 n?m 2021, PHE đa thay đ?i phan lo?i dong B.1.617.2 t? m?t bi?n th? đang đ??c đi?u tra (VUI) thanh m?t bi?n th? đang lo ng?i (VOC) d?a tren đanh gia v? kh? n?ng lay truy?n it nh?t la t??ng đ??ng v?i B.1.1.7 (
bi?n th? alpha
), l?n đ?u tien đ??c xac đ?nh ? V??ng qu?c Anh (d??i ten g?i bi?n th? Kent).
[9]
Sau đo, vao ngay 11 thang 5 n?m 2021, WHO c?ng phan lo?i VOC dong nay, va noi r?ng no cho th?y b?ng ch?ng v? kh? n?ng lay truy?n cao h?n va gi?m kh? n?ng phong ch?ng. Bi?n th? nay đ??c cho la ch?u trach nhi?m m?t ph?n cho
c?n song d?ch th? hai t?i ?n đ?
b?t đ?u vao thang 2 n?m 2021.
[10]
[11]
[12]
No c?ng t?o ra c?n song d?ch th? ba t?i
Fiji
,
V??ng qu?c Anh
[13]
[14]
va
Nam Phi
,
[15]
va sau đo WHO c?nh bao vao thang 7 n?m 2021 r?ng bi?n th? nay co th? co tac đ?ng t??ng t? ? nh?ng n?i khac nh?
chau Au
va
chau Phi
.
[16]
Vao ngay 7 thang 6 n?m 2021, cac nha nghien c?u t?i Trung tam Qu?c gia v? Cac b?nh Truy?n nhi?m ? Singapore đa đ?ng m?t bai vi?t cho th?y r?ng nh?ng b?nh nhan co k?t qu? xet nghi?m d??ng tinh v?i bi?n th? delta co nhi?u kh? n?ng b? viem ph?i va/ho?c c?n th? oxy h?n nh?ng b?nh nhan m?c virus thong th??ng ho?c bi?n th? alpha.
[17]
Vao ngay 15 thang 6 n?m 2021, Trung tam Ki?m soat va Phong ng?a D?ch b?nh Hoa K? đa tuyen b? delta la m?t bi?n th? đang lo ng?i.
[18]
Bi?n th? Delta co cac đ?t bi?n trong gen ma hoa protein đ?t bi?n SARS-CoV-2 gay ra cac s? thay th?
D614G
,
T478K
,
P681R
va
L452R
. H? th?ng phan lo?i phat sinh loai Nextstrain phan lo?i ch?ng thu?c nhanh 21A.
[5]
Cac dong ph? khac c?a B.1.617
[
s?a
|
s?a ma ngu?n
]
Cho đ?n nay, co ba dong ph? c?a dong
B.1.617
đ??c phan lo?i.
B.1.617.1 đ??c B? Y t? Cong c?ng Anh ch? đ?nh la m?t Bi?n th? đang đ??c đi?u tra vao thang 4 n?m 2021. Sau đo vao thang 4 n?m 2021, hai bi?n th? khac B.1.617.2 va
B.1.617.3
đ??c ch? đ?nh la Bi?n th? đang đ??c đi?u tra. Trong khi B.1.617.3 chia s? cac đ?t bi?n L452R va E484Q đ??c tim th?y trong B.1.617.1, B.1.617.2 thi?u đ?t bi?n
E484Q
.
[19]
[20]
-
Cac đ?t bi?n axit amin c?a bi?n th? SARS-CoV-2 Delta đ??c v? tren
b?n đ?
b? gen c?a SARS-CoV-2 v?i tr?ng tam la Spike.
[21]
Xac đ?nh cac đ?t bi?n trong bi?n th?
SARS-CoV-2 Delta
Gene
|
Nucleotide
|
Amino acid
|
ORF1b
|
|
P314L
|
|
P1000L
|
Spike
|
|
G142D
|
|
T19R
|
|
R158G
|
|
L452R
|
|
T478K
|
|
D614G
|
|
P681R
|
|
D950N
|
|
E156del
|
|
F157del
|
M
|
|
I82T
|
N
|
|
D63G
|
|
R203M
|
|
D377Y
|
orf3a
|
|
S26L
|
orf7a
|
|
V82A
|
|
T120I
|
Ngu?n: CDC
[22]
Covariants.org
[23]
|
| Bai vi?t nay
c?n đ??c
c?p nh?t
do co ch?a cac thong tin co th? đa l?i th?i hay khong con chinh xac n?a.
B?n co th? giup Wikipedia b?ng cach
c?p nh?t
cho bai vi?t nay.
|
Cac bi?n phap khong dung thu?c đ??c khuy?n ngh? đ? ng?n ch?n lo?i hoang da COVID-19 v?n co hi?u qu? đ?i v?i Delta. Nh?ng đi?u nay bao g?m r?a tay, đeo kh?u trang, gi? kho?ng cach v?i ng??i khac, tranh ch?m vao mi?ng, m?i ho?c m?t, tranh khong gian đong đuc trong nha v?i h? th?ng thong gio kem.
[24]
đ?n ngay 22 thang 6 n?m 2021, h?n 4.500 trinh t? c?a bi?n th? đa đ??c phat hi?n ? kho?ng 78 qu?c gia.
[2]
S? trinh t? đ??c bao cao ? cac qu?c gia co phat hi?n la:
Cac tr??ng h?p qu?c gia
|
Qu?c gia & khu v?c
|
S? ca do bi?n ch?ng Delta (
PANGOLIN
) k? t? 14 thang 7
|
Cac tr??ng h?p đa xac nh?n
(
GISAID
).
[2]
k? t? 19 thang 7
|
Tr??ng h?p đ?u tien
|
V??ng qu?c Anh
|
124,991
|
152,086
|
22 thang 2, 2021
|
M?
|
12,499
|
15,632
|
23 thang 2, 2021
|
Fiji
|
(?)
|
(?)
|
19 thang 4, 2021
|
?n đ?
|
10,584
|
12,939
|
15 thang 10, 2020
|
Canada
|
315
|
2,365
|
15 thang 3, 2021
|
đan M?ch
|
2,534
|
5,501
|
8 thang 3, 2021
|
đ?c
|
2,679
|
3,559
|
1 thang 3, 2021
|
B? đao Nha
|
1,846
|
2,495
|
5 thang 4, 2021
|
Nh?t B?n
|
448
|
577
|
28 thang 3, 2021
|
Th?y đi?n
|
1,725
|
2,411
|
26 thang 3, 2021
|
Y
|
1,346
|
2,192
|
2 thang 4, 2021
|
Tay Ban Nha
|
1,399
|
2,164
|
22 thang 4, 2021
|
Phap
|
1,109
|
1,871
|
21 thang 2, 2021
|
B?
|
1,077
|
1,841
|
25 thang 3, 2021
|
Ha Lan
|
821
|
1,249
|
26 thang 4, 2021
|
C?ng hoa Nam Phi
|
382
|
1,201
|
30 thang 4, 2021
|
Mexico
|
382
|
1,198
|
5 thang 4, 2021
|
Ireland
|
602
|
1,194
|
26 thang 2, 2021
|
Singapore
|
1,038
|
1,083
|
26 thang 2, 2021
|
Nga
|
783
|
985
|
21 thang 4, 2021
|
Indonesia
|
580
|
797
|
3 thang 4, 2021
|
Th?y S?
|
418
|
675
|
29 thang 3, 2021
|
Israel
|
644
|
670
|
16 thang 4, 2021
|
Uc
|
583
|
643
|
16 thang 3, 2021
|
Th? Nh? K?
|
(?)
|
611
|
28 thang 4, 2021
|
Vi?t Nam
|
54
|
72
|
18 thang 4, 2021
|
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.
www.gov.uk
. ngay 15 thang 4 n?m 2021
. Truy c?p ngay 20 thang 4 n?m 2021
.
B?n m?u:OGL-attribution
- ^
a
b
c
“Tracking of Variants”
.
gisaid.org
.
GISAID
. ngay 26 thang 4 n?m 2021
. Truy c?p ngay 2 thang 7 n?m 2021
.
- ^
“Expert reaction to cases of variant B.1.617 (the 'Indian variant') being investigated in the UK”
. Science Media Centre
. Truy c?p ngay 20 thang 4 n?m 2021
.
- ^
Shang, Jian; Yushun, Wan; Lou, Chuming; Ye, Gang; Geng, Qibin; Auerbach, Ashley; Fang, Li (2020).
“Cell entry mechanisms of SARS-CoV-2”
.
Proceedings of the National Academy of Sciences
.
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(21): 11727?11734.
doi
:
10.1073/pnas.2003138117
.
PMC
7260975
.
PMID
32376634
.
- ^
a
b
“expert reaction to VUI-21APR-02/B.1.617.2 being classified by PHE as a variant of concern”
.
sciencemediacentre.org
. 7 thang 5 n?m 2021
. Truy c?p ngay 18 thang 6 n?m 2021
.
- ^
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“Complete map of SARS-CoV-2 RBD mutations that escape the monoclonal antibody LY-CoV555 and its cocktail with LY-CoV016”
.
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.
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(4): 100255.
doi
:
10.1016/j.xcrm.2021.100255
.
PMC
8020059
.
PMID
33842902
.
- ^
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(PDF)
. ngay 27 thang 5 n?m 2021
. Truy c?p ngay 18 thang 6 n?m 2021
.
B?n m?u:OGL-attribution
- ^
“SARS-CoV-2 variants of concern and variants under investigation in England”
(PDF)
.
assets.publishing.service.gov.uk
. Public Health England Technical Briefing 16 (b?ng ti?ng Anh). 19 thang 6 n?m 2021. tr. 8
. Truy c?p ngay 29 thang 6 n?m 2021
.
B?n m?u:OGL-attribution
- ^
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.
www.gov.uk
. ngay 7 thang 5 n?m 2021.
L?u tr?
b?n g?c ngay 7 thang 5 n?m 2021
. Truy c?p ngay 7 thang 5 n?m 2021
.
B?n m?u:OGL-attribution
- ^
WHO labels a Covid strain in India as a 'variant of concern' ? here's what we know
, CNBC, ngay 11 thang 5 n?m 2021.
- ^
"WHO says India Covid variant of 'global concern
'
"
, BBC News, ngay 11 thang 5 n?m 2021.
- ^
"India's second COVID-19 wave"
, The Wire Science, ngay 22 thang 4 n?m 2021.
- ^
Callaway, Ewen (ngay 22 thang 6 n?m 2021).
“Delta coronavirus variant: scientists brace for impact”
.
Nature
(b?ng ti?ng Anh).
595
(7865): 17?18.
doi
:
10.1038/d41586-021-01696-3
.
PMID
34158664
.
- ^
CNN, Rob Picheta.
“Britain thinks it can out-vaccinate the Delta variant. The world isn't so sure”
.
CNN
. Truy c?p ngay 2 thang 7 n?m 2021
.
- ^
“Health service buckling as third coronavirus wave fuelled by Delta variant sweeps across South Africa”
.
the Guardian
(b?ng ti?ng Anh). 4 thang 7 n?m 2021
. Truy c?p ngay 7 thang 7 n?m 2021
.
- ^
Ellyatt, Holly (1 thang 7 n?m 2021).
“New Covid wave could be imminent as delta variant sweeps Europe, WHO says”
.
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(b?ng ti?ng Anh)
. Truy c?p ngay 2 thang 7 n?m 2021
.
- ^
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. SSRN. ngay 7 thang 6 n?m 2021.
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.
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l?u tr? ngay 7 thang 7 n?m 2021.
- ^
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. CDC. 15 thang 6 n?m 2021.
- ^
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.
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.
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.
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.
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.
- ^
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- ^
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.
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.
- ^
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.
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.
- ^
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.
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.