Identifying Multiple Possible Outbreak Sources
The following histogram shows that, in an epidemic of hepatitis A in Ibiza, Spain, in 2001, three groups of cases were identified. The epidemic curve can be devised into 3 subgroups (restaurant attendants, customers of shop-B, and hotel C residents). Subsequently, detailed investigation and case control studies could have been conducted to identify vehicles and risk factors specific to each subgroup.
Source: Instituto Carlos III, Madrid, Spain
FEM PAGE CONTRIBUTORS 2007
- Editor
- Graham Fraser
- Original Authors
- Alain Moren
- Marta Valenciano
- Contributors
- Graham Fraser
- Lisa Lazareck
- Vladimir Prikazsky
Root > Assessing the burden of disease and risk assessment > Field Epidemiology > Outbreak Investigations > Confirm the outbreak > Types of Outbreak
