The South Carolina measles outbreak is growing at an astounding speed. “Over the last seven to nine days, we’ve had upwards of over 200 new cases. That’s doubled just in the last week,” Dr. Johnathon Elkes, an emergency medicine physician at Prisma Health in Greenville, South Carolina, said during a media briefing Friday. “We feel like we’re really kind of staring over the edge, knowing that this is about to get a lot worse.”... The number of cases is expected to grow. The health department’s report only reflects the number of people whose illness has been confirmed as measles by...