RT Journal Article SR Electronic(1) A1 Altpeter, E A1 Helbling, P A1 Pagano, E A1 PA Raeber YR 2001 T1 Outbreak of invasive meningococcal disease in Switzerland JF Weekly releases (1997–2007) VO 5 IS 8 SP 1800 OP DO https://doi.org/10.2807/esw.05.08.01800-en UL https://www.eurosurveillance.org/content/10.2807/esw.05.08.01800-en