Table. Demographic characteristics of patients and distribution of influenza viruses and other influenza-like illnesses, Gabon, July 2009–June 2011*.

Patient and illness data	Influenza virus types				Other†	Total no. patients
	pH1N1	A	B	pH1N1 + A + B
Sex, no. patients
M	33	4	23	60	427	487
F	39	4	28	71	408	479
Median age, y (range)	2 (2 mo–49 y)	45 (9–50 y)	2 (3 mo–41 y)	2 (2 mo–50 y)	1.58 (10 d–82 y)	1.66 (10 d–82 y)
Age group, no. patients
0–23 mo	30	0	20	50	444	494
2–4 y	25	0	17	42	219	261
>4 y	17	5	10	32	147	179
Illness, by year and town
2009
Libreville	3 (33)	6 (67)	0	9	12	21
Franceville	1 (50)	1 (50)	0	2	0	2
Koulamoutou	0	0	0	0	0	0
Oyem	0	1 (100)	0	1	1	2
Total	4 (33)	8 (67)	0	12	13	25
2010
Libreville	16 (70)	0	7 (30)	23	224	247
Franceville	1 (3)	0	34 (97)	35	135	170
Koulamoutou	15 (94)	0	1 (6)	16	42	58
Oyem	11 (85)	0	2 (15)	13	105	118
Total	43 (49)	0	44 (51)	87	506	593
2011
Libreville	11 (92)	0	1 (8)	12	165	177
Franceville	6 (60)	0	4 (40)	10	43	53
Koulamoutou	2 (50)	0	2 (50)	4	32	36
Oyem	6 (100)	0	0	6	76	82
Total	25 (78)	0	7 (22)	32	316	348
Total
Libreville	30 (68)	6 (14)	8 (18)	44	401	445
Franceville	8 (17)	1 (2)	38 (81)	47	178	225
Koulamoutou	17 (85)	0	3 (15)	20	74	94
Oyem	17 (85)	1 (5)	2 (10)	20	182	202
Total	72 (55)	8 (6)	51 (39)	131	835	966

*Values are no. (%) cases except as indicated. pH1N1, pandemic (H1N1) 2009; A, seasonal influenza A; B, seasonal influenza B.
†Influenza-like illnesses other than pH1N1 or seasonal influenza A or B. Age data were missing for 32 patients in this category.