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Reaction to Charlie Sheen's HIV announcement on TODAY: Shock, anger and support

Charlie Sheen is getting mixed reaction to his announcement that he is HIV positive.
/ Source: TODAY

While celebrity friends and other supporters rallied around Charlie Sheen following his revealing interview on TODAY about his HIV positive-status, the announcement also has generated scorn from women who claim he failed to inform them about his medical condition.

Sheen announced Tuesday he has HIV, the virus that causes AIDS. He said he learned of his status about four years ago, and has has been honest about his status to women he has been intimate with since.

But Bree Olson, who dated Sheen in 2011, said the actor never came clean with her when they were together.

“I could be dead right now. I could literally be dead right now,” she told Inside Edition. “It was like playing Russian roulette."

A representative for Sheen says the actor wasn't HIV positive at the time of their relationship.

NBC News has learned at least one other woman has claimed Sheen failed to tell her he was HIV positive, and that she has sought legal council.

WATCH: Charlie Sheen reveals he's HIV positive in TODAY exclusive

Sheen's personal doctor says his blood work shows an undetectable level of the virus. But HIV specialist Robert Bolan says the only time a blood test states the virus is undetectable is the moment it's taken.

"You don’t know if it's undetectable the next day, the next week, the next month,” said Bolan, medical director of the Los Angeles LGBT Center. “You just can’t be sure all of the time."

While laws vary among states, it is a felony in California to knowingly infect another person with HIV.

RELATED: What Charlie Sheen's HIV announcement means for his health

Sheen insisted in his TODAY interview he has always been open with the women he has had sex with since his diagnosis, but he admitted he does expect lawsuits.

Despite the legal threats he faces, Sheen also received many words of support. His former "Spin City" co-star, Heather Locklear, posted a picture of them together and offered prayers for his family.

Piers Morgan and others also offered words of support through social media and in a piece for DailyMail.com.

Lady Gaga posted an Instagram photo from the interview saying she hopes the announcement will help people learn more about HIV, its prevention and stigma.