The Health Ministry said the trio arrived on a repatriation flight from Auckland on 19 November.
The ministry's Sunil Chandra said two of them were Fiji citizens returning from Mali while the third was a foreign national .
Chandra said the pair had started their journey from Mali while the third patient had transited through New Zealand from Germany.
He said the man worked in Fiji and was returning to the country with his family.
"The first two cases are Fijian citizens, both in their 40s, and worked at a mining company in Mali.