The Centre for Health Protection has confirmed two cases of Legionnaires' disease involving a 68-year-old man and an 80-year-old woman, bringing this year's total to eight.

The Wong Tai Sin man developed fever and shortness of breath on May 4 and was admitted to Pamela Youde Nethersole Eastern Hospital two days later in stable condition.

The second patient, from Eastern District, developed fever and shortness of breath on May 2 and was admitted Pamela Youde Nethersole Eastern Hospital on May 6. She has recovered and has been discharged from hospital.

Their family members have no symptoms.