From known to the unknown: investigating an unusual outbreak of viral exanthema in a secondary school in Abeokuta, Nigeria, 2015.

Investigating an outbreak of disease requires mastery of a set of skills and collaboration among different cadres of health workers. Although you want to focus on a specific disease, you need to keep your mind open to possibilities. This case study is based on investigation of an outbreak of rashes suspected to be measles but which proved to be otherwise.