3.1. Epidemiological information
On 13 April 2013, 31 people participated at a christening party that
took place at a hotel in Freiburg, Baden-Wuerttemberg. Among them,
13 developed typical SFP associated symptoms 3–4 h after lunch.
Seven people, including four young children, two adults and one teenager,
were either hospitalized or obtained an ambulatory treatment.
All of them recovered fully the next day. None of the personnel of the
hotel presented symptoms of SFP. Participants of the party did only
meet for the purpose of the christening and did not meet before.
Interviewing of cases and participants without symptoms was limited
as most of them departed immediately after the party as the majority
of them either live in other regions of Germany or in a neighbouring
country (Switzerland, France).