Antonio Banderas confirmed on his 60th birthday that he tested positive for COVID-19.

The acclaimed “Zorro” actor took to Twitter to share a lengthy note with the caption that read, “I want to tell you the following…” In the note, which was written entirely in Spanish, he explained that he has tested positive for the coronavirus, which continues to spread across the world.

Fortunately, he quelled fans’ immediate fears that the sometimes life-threatening illness has not put him in any danger thus far.

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“I’d like to add that I’m feeling relatively well, just a bit more tired than usual, and confident that I will recover as soon as possible,” he wrote.

The note came along with what appears to be a black-and-white photo of the “Desperado” actor when he was a baby.

FILE - In this Feb. 22, 2015 file photo, Antonio Banderas arrives at the 2015 Vanity Fair Oscar Party in Beverly Hills, Calif. Banderas will star in a series on Starz called “Cuban Quartet.” The announcement was made Friday in Beverly Hills, California by Starz CEO Chris Albrecht at a panel for television critics. (Photo by Evan Agostini/Invision/AP, File)

Antonio Banderas revealed that he's tested positive for COVID-19. (Evan Agostini/Invision/AP, File)

The actor used the note to break the news to his followers and confirm that, as a result of the diagnosis, he’ll be celebrating his 60th birthday in quarantine.

“I will take advantage of this isolation to read, write and rest, continue making plans to begin to give meaning to my newly released 60 years to which came loaded with desire and illusion,” he concluded. “Big hug to everyone.”

As of Monday morning, the novel coronavirus has infected more than 19,871,795 people across 188 countries and territories, resulting in at least 731,503 deaths. In the U.S., all 50 states plus the District of Columbia have reported confirmed cases of COVID-19, tallying more than 5,044,864 illnesses and at least 162,938 deaths.

This isn’t the first time that Banderas has been open with the public about his health. During an appearance on "Jimmy Kimmel Live" last year, he opened up about how his longtime girlfriend, model Nicole Kimpel, saved his life by springing into action the day he suffered a heart attack in 2017.

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"I was living life in a not nice way. I'm not a drinker. I was a smoker, which was probably one of the most stupid things I have ever done in my whole life," Banderas explained to Kimmel about his life habits prior to his heart attack. "I was very lucky, after all."

The “Desperado” actor told an eerie tale of circumstances that led Kimpel to the drug store where she had been picking up over-the-counter medication for a minor ailment she was dealing with at the time.

"The night before that I had this event, my girlfriend, she had a headache and we didn't have anything in the house. So she went out to buy something, a painkiller or whatever," Banderas recalled. "She bought this aspirin, which is the only thing that she found and she found the maximum one, I think it was five milligrams."

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The Golden Globe-nominated actor revealed that the bottle of aspirin is what saved his life when his heart attack occurred the following day.

Fox News' Julius Young contributed to this report.