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Volume 9, Number 4—April 2003

Research

Invasive Group B Streptococcal Infections in Finland: A Population-based Study

Outi Lyytikäinen*Comments to Author , J. Pekka Nuorti*, Erja Halmesmäki†, Petteri Carlson†, Jukka Uotila‡, Risto Vuento‡, Tapio Ranta§, Hannu Sarkkinen§, Martti Ämmälä¶, Anja Kostiala¶, and Anna-Liisa Järvenpää†
Author affiliations: *National Public Health Institute, Helsinki, Finland; †Helsinki University Central Hospital, Helsinki, Finland; ‡Tampere University Hospital, Tampere, Finland; §Päijät-Häme Central Hospital, Lahti, Finland; ¶Jorvi Hospital, Espoo, Finland

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Table 2

Annual incidence of early-onset and late-onset invasive group B streptococcus infections, Finland, 1995–2000

1995 1996 1997 1998 1999 2000
Early-onset disease






No. of cases
37
37
34
38
33
32
Incidencea
0.6
0.6
0.6
0.7
0.6
0.6
Late-onset disease






No. of cases
8
16
6
10
9
7
Incidencea 0.1 0.3 0.1 0.2 0.2 0.1

aCases per 1,000 live births.

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