No, it's not sickle cell.That's been around for a long time. There's a new allele that's more effective against malaria and has no known bad side effect.
Edit: oh, and the blood disease you refer to is sickle cell anaemia.
(,
Sun 3 Jun 2007, 17:20,
archived)
Edit: oh, and the blood disease you refer to is sickle cell anaemia.