Rita Wilson reveals she still has COVID-19 antibodies

Rita Wilson has revealed she still has COVID-19 antibodies, despite recovering from the virus nearly nine months ago.

The singer and her husband, actor Tom Hanks, were among the first celebrities to test positive for the coronavirus back in March.

Wilson, 64, opened up about her health on Jimmy Kimmel Live! overnight.

"I feel like you're the only person I don't have to worry about because you must be brimming with antibodies right now," Kimmel said.

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"I still have antibodies!" Wilson replied. The actress, who enlisted in a UCLA research program earlier this year, gets tested every few months.

"They test us and so far we still have them," she said, suggesting other participants also have the antibodies. "They diminish as you get farther away from your infection, but they're still there helping us out."

Antibodies are proteins that help fight off infections and can provide protection against getting the disease again.

READ MORE: Tom Hanks and Rita Wilson's complete relationship timeline

In March, Hanks informed fans that he and Wilson had tested positive for COVID-19 while in Australia. The couple quarantined in a Gold Coast hospital as they recovered from the virus.

"We have COVID-19 and are in isolation so we do not spread it to anyone else," Hanks wrote in an Instagram post at the time. "There are those for whom it could lead to a very serious illness. We are taking it one-day-at-a-time."

The following month, the pair donated their plasma to medical research in order to assist with finding a vaccine.

"A photo of getting tested for antibodies in preparation of donating plasma. Thank you Dr. Anne Rimoin at UCLA for the study you're working on to help patients heal from COVID-19," Wilson wrote in April this year.

The actress previously discussed her symptoms and experience with coronavirus on CBS This Morning.

"I felt extremely achy, uncomfortable, didn't want to be touched, and then the fever started," Wilson told Gayle King in April, adding she suffered from "chills like I never had before."