From 1998 until 2015, Wieler worked as professor and director of the Institute of Microbiology and Epizootics at the
Free University of Berlin. During that time, he spent a
sabbatical at the
Wellcome Sanger Institute in
Hinxton under the supervision of
Gordon Dougan. In addition to his role at RKI, Wieler was a member of the
World Health Organization's Strategic and Technical Advisory Group for Infectious Hazards (STAG-IH) since 2018. In 2020, he chaired the WHO's Committee for the Review of the
International Health Regulations. Also in 2020, he was appointed to the
Global Leaders Group on Antimicrobial Resistance, co-chaired by
Sheikh Hasina and
Mia Mottley. Since 2023, Wieler has been working at the
Hasso Plattner Institute. == Other activities ==