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Volume 18, Number 1—January 2012

CME ACTIVITY

Accelerating Control of Pertussis in England and Wales

Helen CampbellComments to Author , Gayatri Amirthalingam, Nick Andrews, Norman K. Fry, Robert C. George, Timothy G. Harrison, and Elizabeth Miller
Author affiliations: Health Protection Agency, London, UK

Main Article

Table 2

Details of case-patients followed up through enhanced pertussis surveillance, England and Wales, 2002–2009

Variable No. (%) case-patients, by age group*
<1 y, n = 1,185† 1–4 y, n = 190‡ 5–9 y, n = 225§ 10–14 y, n = 498¶ >15 y, n = 1,781#
No. vaccine doses administered before symptom onset
0 840 (77) 76 (44) 51 (24) 38 (8) 652 (59)
1 196 (18) 9 (5) 8 (4) 6 (1) 24 (2)
2 36 (3) 1 (1) 4 (2) 7 (1) 26 (2)
3 24 (2) 85 (49) 98 (47) 419 (86) 396 (36)
4 0 3 (2) 48 (23) 15 (3) 0
Total hospitalized 927 (90) 66 (42) 35 (19) 44 (10) 81 (5)
Any complications**
Yes 394 (39) 30 (19) 22 (12) 29 (7) 176 (11)
Yes, excluding apnea
in those >1 y old 394 (39) 11 (8) 19 (11) 18 (4) 69 (5)

*Proportions are based on total cases where these details were provided.
†Median age at onset 53 d; 48% male.
‡Median age at onset 2.5 y; 42% male.
§Median age at onset 7.8 y; 50% male.
¶Median age at onset 12.5 y; 49%male.
#Median age at onset 41.8 y; 44% male.
**Specifically reported pneumonia, convulsion, apnea, conjunctival hemorrhage, or death.

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