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. 2019 May 23;24(21):1900273. doi: 10.2807/1560-7917.ES.2019.24.21.1900273

Table 1. Mutations in haemagglutinin 1 of viral sequences recovered from an infected patient and from environmental samples collected nearby, compared to candidate vaccine strain A/Guangdong/17SF003/2016(H7N9), Inner Mongolia Autonomous region, China, April 2019a .

Strain name Passage Sites number (H7 numbering)
9 22 47b 71 78 114b 116 125b 134b 151 163 169 184 261 301
A/Guangdong/17SF003/2016(H7N9) E1 A R R E I G T V S A K I K R K
A/Gansu/23277/2019(H7N9) Original S K K K V R K T P T R V R G R
A/Gansu/23276/2019(H7N9) Original S K K K V R K A/T P T R V R G R
A/Gansu/23275/2019(H7N9) Original S K K K V R K A/T P T R V R G R
A/Gansu/23277/2019(H7N9) E1 S K K K V R E T P T R V R G R
A/Gansu/23276/2019(H7N9) E1 S K K K V R K A P T R V R G R
A/Gansu/23275/2019(H7N9) E1 S K K K V R K A P T R V R G R
A/Gansu/23447/2019(H7N9) E1 S K K K V R K T P T R V R G R
A/Gansu/23453/2019(H7N9) E1 S K K K V R K A P T R V R G R
A/Environment/Inner Mongolia/23280/2019(H7N9)   Original S K K K V R K T P T R V R G R
A/Environment/Inner Mongolia/23286/2019(H7N9)   Original S K K K V R K T P T R V R G R
A/Environment/Inner Mongolia/23287/2019(H7N9) E1 S K K K V R K T P T R V R G R
A/Environment/Inner Mongolia/23286/2019(H7N9) E1 S K K K V R K T P T R V R G R
A/Environment/Inner Mongolia/23285/2019(H7N9) E1 S K K K V R K T P T R V R G R
A/Environment/Inner Mongolia/23283/2019(H7N9) E1 S K K K V R K T P T R V R G R
A/Environment/Inner Mongolia/23280/2019(H7N9) E1 S K K K V R K T P T R V R G R
A/Environment/Inner Mongolia/23278/2019(H7N9) E1 S K K K V R K T P T R V R G R

NA: not applicable.

a Environmental samples were collected 4 days after the first specimen was obtained from the patient.

b Previously reported immune escape mutation.