Here's a look at health and environmental news from around South Carolina.

DHEC recalling Charleston County oysters harvested during sewage leak

CHARLESTON, S.C. (AP) - Health officials in South Carolina have ordered a recall of oysters harvested where a sewage spill occurred last month.

Black Americans are twice as likely to get Alzheimer's. Vernon Williams was one of the unlucky ones

Vernon Williams had begun to forget little things. He would begin driving, only to realize he couldn't remember how to get to where he was going. Trips to the refrigerator ended in frustration. After church, people he had known for years greeted him. But he couldn't recall their names. -I just couldn't remember exactly, he said. He wasn't even thinking about Alzheimer's disease then. Now, it's his reality. Williams, 84, began to notice the early signs of the disease about two years ago.

General Interest

With pollen out in full force, Charleston allergy experts offer tips to mitigate your symptoms

That yellow film covering every conceivable outdoor surface signals two truths: Spring is right around the corner and pollen allergy sufferers are miserable. It's not just your imagination, there's a lot of pollen out there. In fact, "the current pollen count is between the -high' and -very high' range," according to a statement published Tuesday by Charleston Allergy and Asthma. Three local allergists offer answers about the best allergy medicines, how genetics play a role in seasonal allergies and, perhaps most importantly, when we can expect all this pollen to disappear.