The Boston Public Health Commission said the cases do not pose a threat to the public.
Chikungunya is a viral disease transmitted to people by infected mosquitoes. The infection can last about three to seven days.
The most common symptoms of this mosquito-borne disease are fever and joint paint. There also be symptoms like include headache, muscle pain, joint swelling, or rash.
Currently, there is no vaccine to prevent or medicine to treat the virus.
Since July of this year, more than 50 cases of chikungunya have been recorded in the US. Most of the infections have been detected in the state Florida by travelers who traveled from the Caribbean.
Health officials said no mosquitoes in the US have been found carrying the disease.
