Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 28, Number 5—May 2022
Research

Determining Existing Human Population Immunity as Part of Assessing Influenza Pandemic Risk

Jonathan Tin Lai Cheung, Tim K. Tsang, Hui-ling Yen, Ranawaka A.P.M. Perera, Chris Ka Pun Mok, Yong Ping Lin, Benjamin J. Cowling, and Malik PeirisComments to Author 
Author affiliations: University of Hong Kong, Hong Kong (J.T.L. Cheung, T.K. Tsang, H. Yen, R.A.P.M. Perera, C.K.P. Mok, B.J. Cowling, M. Peiris); Chinese University of Hong Kong, Hong Kong (C.K.P. Mok); First Affiliated Hospital of Guangzhou Medical University, Guangdong, China (Y.P. Lin)

Main Article

Table 2

Age-stratified seroprevalence and GMT to swine influenza viruses of different lineages among 353 persons in Hong Kong and Guangzhou, China*

Patient age, y NS4003 EA, H1N1
 GD104 EA, H1N1
 NS301 TRIG, H1N2
 TS1436 H1N1pdm09
TS4348 BD-like H3N2
Sero† (%) GMT (95% CI) Sero† (%) GMT 
(95% CI) Sero† (%) GMT 
(95% CI) Sero† (%) GMT 
(95% CI) Sero† (%) GMT 
(95% CI)
<10
 7/33
(21.2)
 11
(7–16)
3/33
(9.1)
 7
(5–9)
2/33
(6.1)
 8
(6–10)
21/33
(63.6)
 63
(34–119)
18/33
(54.5)
 28
(15–51)
11–20
 3/42
(7.1)
 8
(6–9)
2/42
(4.8)
 7
(5–9)
1/42
(2.4)
 7
(6–8)
30/42
(71.4)
 54
(36–81)
37/42
(88.1)
 115
(81–162)
21–30
 3/38
(7.8)
 8
(6–10)
10/38
(26.3)
 13
(8–19)
4/38
(10.5)
 8
(6–10)
23/38
(60.5)
 34
(22–52)
35/38
(92.1)
 154
(106–225)
31–40
 4/42
(9.5)
 7
(6–9)
6/42
(14.3)
 9
(7–12)
6/42
(14.3)
 10
(8–14)
17/42
(40.5)
 20
(13–29)
27/42
(64.3)
 40
(27–59)
41–50
 9/40
(22.5)
 11
(8–15)
5/40
(12.5)
 7
(5–10)
6/40
(15)
 9
(7–13)
13/40
(32.5)
 14
(10–21)
24/40
(60)
 33
(23–48)
51–60
 3/40
(7.5)
 7
(5–10)
3/40
(7.5)
 7
(5–9)
2/40
(5)
 8
(6–11)
7/40
(17.5)
 10
(7–15)
19/40
(47.5)
 28
(18–42)
61–70
 1/39
(2.5)
 6
(5–7)
2/39
(5.1)
 6
(5–8)
1/39
(2.6)
 7
(6–8)
11/39
(28.2)
 12
(8–17)
21/39
(53.8)
 27
(19–38)
>70 4/79
(5.1)		 7
(6–7)		 8/79
(10.1)		 8
(7–10)		 5/79
(6.3)		 7
(6–8)		 24/79
(30.4)		 15
(12–20)		 58/79
(73.4)		 54
(42–68)

*Serum samples were collected during 2013–2014 in Hong Kong and during 2015 in Guangzhou. BD, Binh Duong; EA, Eurasian–avian-like; GMT, geometric mean titer; sero, seroprevalence; TRIG, triple-reassortant internal gene. †Proportion of persons with hemagglutination inhibition antibody titers >1:40.

Main Article

Page created: February 24, 2022
Page updated: April 19, 2022
Page reviewed: April 19, 2022
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external