medical coverage with pre-existing conditions (asthma)

[maryisme]

Hi,
My brother, who lives in Malta, Europe will be visiting me this summer. His dd (7) has asthma. Is there a insurance policy that I can purchase for him that will cover a pre-existing condition? Any help would be really appreciated. I am going to search online but I would love to hear from anyone who has had to deal with this issue.

Thanks.

Mary