You could save a life with a simple swab of your cheek.
The National Bone Marrow Registry is always looking for more donors.
But Be The Match, the organization responsible for managing the registry, says the need for minority donors is greater than ever.
Monday's drive in the Roanoke Civic Center parking lot was really targeted at African Americans who represent 13% of the nation's population, but just 8% of the registry.
It was put on by radio stations of Wheeler Broadcasting.
They say they've done around 30 of these in the past 5 years, but that this one is personal.
"Although it's raining, it's not stopping you from coming out and help saving lives," Kianna Price Wade said in the radio booth from the parking lot.
Around 100 people braved Monday's rain to come get swabbed.
The sicknesses our loved ones lose to touch us all.
Lymphoma, Sickle Cell, Skin cancer; it could happen to any of us. But because there aren't enough minorities, especially African Americans, in the system, their chances of winning are lower.
"When we get those numbers up to where they're both equal, where there's 13% representation, that brings African American's into an even chance," said Gordon Small. Small is a volunteer who travels the country trying to get minorities into the registry.
For Small, the swabbing is personal. His grandson needed a match.
Wade works for Vibe 100, a Rhythm and Blues station in Roanoke.
She's been to these drives before, knows what they mean.
"Now, it's a lot more personal because one of our very own needs a transplant," she said.
Stephanie Campbell is a receptionist at the station's office in Roanoke County, has been for 15 years.
She's even volunteered for the drives the radio station had before. Now, she has cancer.
After helping other people find a match, she needs one.
"They've been there for me since day 1, they have come to the rescue of somebody who was very, very sick, and I'm just so appreciative to them," Campbell said of her coworkers.
As much as this drive has been about bringing out anyone, especially African-Americans to help someone else, it's about helping Stephanie Campbell.
"You don't know. I wouldn't have ever thought that I would be sick. I never thought I'd have cancer at 45 years old, in good health. So you don't ever know who this is going to affect," Campbell said.
"Many of us have the power to help save a life, even if you don't know Stephanie, that's a pretty incredible gift to give someone," Wade added.
You never know who might be impacted by the sicknesses that take the ones we love away.
But you also never know who can help.
According to Be The Match, ethnicity really does matter; you're more likely to match someone with a similar lineage.