Between 2002 and 2005, she was Head of Department for Infectious Disease Epidemiology.[3] At the Robert Koch Institute, Ammon was responsible for the German national outbreak surveillance system, coordinating their response to severe acute respiratory syndrome (SARS) and Influenza A virus subtype H2N2.[4] As part of this effort, Ammon investigated in-flight transmission of SARS and found that it was uncommon; and only likely if infected people fly during symptomatic phases of their illness.[5]