A marked increase in case fatality has been observed among reported cases of invasive group B streptococcal infections (GBS) in infants younger than 90 days old (thereafter referred to as 'infant') in Norway since the beginning of 2006. Twenty four cases of GBS in infants were reported to the Norwegian communicable disease notification system (MSIS) between 1 January and 21 July, and eight cases (33%) have been fatal. (Extrait de l'article)