21st International Congress on Infectious Diseases (ICID 2026)
- Dates:
- Organizer:
- International Society for Infectious Diseases (ISID)
- Location:
- Madrid, Spain
- Specialty:
- Internal Medicine
- Format:
- In-Person
The 21st International Congress on Infectious Diseases (ICID 2026) is the flagship biennial meeting of the International Society for Infectious Diseases (ISID), held 10–13 November 2026 in Madrid, Spain. ICID is the premier global forum that goes beyond clinical microbiology and communicable diseases to encompass all fields of infection within a One Health context, championing practitioners from e