These two new cases are reminiscent of the so-called "Berlin patient, " the only person known to have been cured of infection from the human immunodeficiency virus.

MSN: Two more men with HIV now virus-free. Is this a cure?

Just as the human immunodeficiency virus, or HIV, does in people, FIV works by wiping out infection-fighting T-cells.

BBC: Glowing cats shed light on Aids