A man and his daughter who recently travelled to Bangladesh are Hong Kong's latest imported cases of chikungunya fever.

The infections of the 50-year-old man and his eight-year-old daughter who live in Sai Kung District raised to eight the number of imported cases of the mosquito-borne disease in Hong Kong so far this year.

The Centre for Health Protection said the pair visited the Bangladeshi capital Dhaka between July 20 and August 10, but could not confirm if they were bitten by mosquitoes there.

The father developed a fever and joint pain when he was in Bangladesh and sought medical attention there.

His fever had subsided before he returned to Hong Kong on Sunday.

The man then sought treatment at a private hospital two days later because of swollen joints and was not hospitalised.

His daughter developed a fever, cough and fatigue on Tuesday and sought treatment at a private hospital where she's in stable condition.