Table 1.

 Estimate and range of cases of pandemic (H1N1) 2009 by week

Week ending	Laboratory‐confirmed cases*	Cases (range) in thousands**	Revised case numbers (range) in thousands***
7 June 2009	181		0·1 (0·0–0·1)
14 June 2009	385		0·4 (0·2–0·8)
21 June 2009	1316		2 (1–4)
28 June 2009	2841		8 (3–15)
5 July 2009	3544		15 (6–27)
12 July 2009		55 (30–85)	25 (10–45)
19 July 2009		100 (60–140)	75 (30–140)
26 July 2009		110 (60–160)	65 (25–120)
2 August 2009		30 (15–85)	45 (25–100)
9 August 2009		25 (15–60)	28 (14–61)
16 August 2009		11 (6–25)	12 (6–25)
23 August 2009		5 (3–12)	6 (3–13)
30 August 2009		5 (3–10)	4 (2–08)
6 September 2009		3 (2–7)	5 (3–11)
13 September 2009		5 (3–11)	8 (4–17)
20 September 2009		9 (5–20)	11 (5–23)
27 September 2009		14 (7–30)	16 (8–35)
4 October 2009		18 (9–38)	28 (14–61)
11 October 2009		27 (13–58)	34 (17–75)
18 October 2009		53 (27–115)	56 (28–121)
25 October 2009		80 (39–169)	78 (39–169)
1 November 2009		84 (42–181)	70 (35–151)
8 November 2009		64 (32–140)	53 (27–115)
15 November 2009		53 (26–114)	50 (25–108)
22 November 2009		46 (23–99)	39 (19–84)
29 November 2009		22 (11–47)	23 (11–49)
6 December 2009		11 (6–24)	14 (7–30)
13 December 2009		9 (5–19)	11 (5–23)
20 December 2009		6 (3–13)	6 (3–13)
Cumulative		845 (415–1662)	788 (375–1644)

*Laboratory‐confirmed case numbers during the period when almost all suspected cases were tested.

**Case numbers as published at the end of each week.

***Revised weekly estimates based on additional results available by 20 December.