By Sandra Rose  | 

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Rev. Jesse Jackson and his wife, Jacqueline, are "responding positively" to Covid-19 treatment at Northwestern Memorial Hospital in Chicago.

Their son, Jonathan Jackson, shared an update on his parents' condition on Sunday, reports.

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Jonathan told Chicago's ABC7 his mother had breathing difficulties but she is now "resting comfortably and responding positively to treatment."

"She had been real lethargic with flu-like symptoms [and] went to the hospital Friday," he said.

"Then it was diagnosed that she and my dad both had contracted COVID. She is having some oxygen, but is able to function and breathe on her own without a respirator. Nothing severe. Because of her age and her current health, it is more challenging."

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Rev. Jesse Jackson, 79, and Jacqueline Jackson, 77, were fully vaccinated in January. They had no issues until they took ill and were admitted to the hospital, where they both tested positive for Covid-19 on Friday, Aug. 20.

Jonathan said his parents are not out of the woods yet.

"This is vicious and it can turn quickly," said Jonathan. "So we are trying to stay upbeat and optimistic. But, I have seen this thing turn on a dime. You really just do not know."

Jesse Jackson was diagnosed with Parkinson's back in 2017.