Answer:
The individual was exposed to Loa loa at some point.
Explanation:
The helminth Loa loa , also called the African eye worm , is a type of nematode which can lead to loiasis .
Laiasis is a disease spread to the western and the central Africa .
The disease is generally found found in less than 30 % of the population .
Travelers are more susceptible on developing the symptoms than the native population .