. 2019 Mar 22;8(1):404–412. doi: 10.1080/22221751.2019.1572433

Table 1. NAI titres in patients with RT–PCR-confirmed pandemic influenza A H1N1 infection.

Patient (age/sex)	Date (dd-mm-yyyy) of positive RT–PCR result	Days relative to time of illness onset		NAI titres against pdmN1			NAI titres against seasonal N1			HAI titres against pandemic H1
Patient (age/sex)	Date (dd-mm-yyyy) of positive RT–PCR result	Acute serum	Convalescent serum	Acute serum	Convalescent serum	Fold change	Acute serum	Convalescent serum	Fold change	Acute serum	Convalescent serum	Fold change
A (55/M)^a	29-08-2010	3	34	320	320	1	40	80	2	<10	80	>8
B (36/F)	07-03-2011	0	28	80	320	4	40	160	4	<10	80	>8
C (28/F)	24-01-2013	−1	13	80	320	4	160	320	2	<10	20	>2
D (40/F)	31-01-2013	−2	23	160	160	1	160	320	2	<10	160	>16
E (47/F)^a	29-01-2013	3	27	<10	320	>32	20	160	8	<10	<10	NA^b
F (12/M)^a	12-02-2013	4	21	<10	640	>64	20	1280	64	<10	80	>8
G (42/M)	12-02-2013	−1	16	<10	160	>16	10	80	8	<10	<10	NA
H (25/F)^a	16-02-2013	4	33	<10	80	>8	320	1280	4	<10	320	>32
I (33/M)^a	18-02-2013	3	20	10	80	8	20	40	2	40	320	8
J (24/F)^a	26-02-2013	2	19	320	320	1	320	640	2	1280	1280	1
K (51/M)^a	01-03-2013	3	23	320	160	−2	80	20	−4	<10	<10	NA
L (27/F)^a	04-03-2013	4	21	<10	640	>64	320	2560	3	<10	160	>16
M (35/F)	13-03-2013	3	30	640	640	1	1280	640	−2	320	640	2
N (9/M)^a	07-03-2013	3	21	<10	640	>64	20	640	32	<10	80	>8
O (30/M)^a	16-03-2013	3	28	<10	80	>8	10	80	8	<10	<10	NA
P (6/M)^a	25-03-2013	3	33	<10	80	>8	<10	<10	0	<10	40	>4
Q (30/F)	25-03-2013	0	30	20	2560	128	40	640	16	<10	1280	>128
R (30/M)	03-04-2013	3	30	20	640	32	80	640	4	<10	320	>32

^aIndex cases within family.

^bNA: Not applicable because both acute and convalescent sera have titres <10.