Nurse!

Khloe Kardashian is in bad shape and her family is in a panic because someone in their klan died from a staph infection.

Our Kardashian sources tell us Kris Jenner is "freaked out" because her step-father died from a hospital-borne staph infection. Harry Shannon was in a car accident in 2003, went to the hospital, contracted staph and died. Khloe's diagnosis has sent Kris into a panic.

What's more, Kim tried to visit Khloe Wednesday but her doctors ordered her to stay away because she's 8 months pregnant and it's too dangerous.

As for Khloe, she's getting IV antibiotics and so far the staph is still in her system but doctors are hoping the meds will knock it out.

Khloe Kardashian may have contracted a staph infection from visiting Lamar Odom's bedside ... but the hospital insists it's not a hotbed for the skin infection.

A rep for Cedars-Sinai Medical Center tells TMZ their incidence of staph infections is below state and national benchmarks for hospitals.

They say staph infections are notoriously common ... adding a large percentage of the population have staph bacteria on some part of their body.

As we previously reported ... Khloe cancelled several book tour appearances after developing a lesion on her leg. She's battling staph and believes she contracted it during her visits with Lamar.

Cedars says the best way to prevent the disease ... wash your hands.

Alt-rockers Hinder were involved in a gnarly tour bus crash Wednesday that sent 3 from their crew to the hospital and a search and rescue out for the tour bus driver's beloved service dog, Cuzco.

The band were traveling to their gig in Charlotte, N.C. when their bus slammed into a semi-truck on a stretch of highway outside of Cookeville, TN. The band's bass player, Mike, and lighting guy, Clint, both suffered broken ribs. The tour bus driver was transferred to a Nashville hospital for surgery.

The band put out an APB on their Facebook page following the crash for the driver's Australian Shepherd Cuzco ... who went missing after the collision. Cuzco has since been found uninjured.

The band's show in Charlotte tonight has been cancelled.

Khloe Kardashian contracted a serious staph infection at the hospital where Lamar Odom is laid up, and it's so bad she's had to cancel a portion of her book tour.

Lamar has been hospitalized at Cedars-Sinai Medical Center in L.A. for a month, and Khloe has been a frequent visitor.

We're told Khloe has a lesion on her leg which became incredibly painful. She developed a high fever, swollen glands. She's also sweating profusely with intermittent chills.

One very connected source tells TMZ, "It's so scary. She's so sick."

Khloe cancelled several appearances for her book promotion, tweeting, "I'm sick & dr's orders are that I need to lay low until we narrow down what's wrong."

Michael Lohan was just rushed to the hospital after suffering a possible heart attack.

Law enforcement sources tell TMZ Lohan was at a Florida Department of Children and Families office for a 3-hour monitored visit with his kids. We're told he began to sweat profusely and experience chest pains, so DCF agents called 911.

One source tells us he's on heart meds and when he started getting sick his mom was called and she was rushing his medication over, but his condition worsened.

Docs are running tests to see if he suffered a heart attack.

Charlie Sheen knows many of his sexual partners are lining up to sue him for allegedly exposing them to HIV -- but he insists Bree Olson can take a seat, because she has NO case.

Sources close to Charlie tell us Bree was lying when she told Howard Stern she was living with Sheen around the time he was first diagnosed, and he'd kept her in the dark about it.

We're told Sheen is adamant ... he didn't KNOW he'd contracted the virus until AFTER he got back from his 20-city tour, which ended on May 3, 2011. Olson famously broke up with Charlie nearly two weeks prior to that date via text message.

Charlie Sheen did not tell 4 of his 5 children that he was announcing to the world he had HIV ... sources connected to Charlie tell TMZ.

Our Charlie sources say although he told 30-year-old Cassandra in advance, he did not tell 11-year-old Sam, 10-year-old Lola, or his 6-year-old twins, Bob and Max.

It's especially problematic for Sam and Lola, who are both in school and have to deal with classmates and others without preparation.

We're told the children are all fine ... free of the virus, but there's a measure of emotional upset that clearly must be dealt with ... and the kids will have to handle it without any preparation.

Brooke Mueller was NOT infected with HIV when she was with Charlie Sheen.

Charlie's most recent ex-wife and mother of his twin boys released the following statement through her rep: “Brooke has been inundated with calls from friends and family. To put their minds at ease, Brooke can confirm that she and the boys are not HIV positive."

During his "Today" interview, Sheen said he immediately told Brooke about his diagnosis when he found out. According to Charlie, he was diagnosed in 2011 ... the same year he and Brooke divorced.

The doctor treating Charlie Sheen for HIV is almost as famous as Charlie -- appearing on TONS of TV shows (including "The Biggest Loser") ... and shook up the NFL as a doctor for the L.A. Raiders.

His name is Dr. Robert Huizenga -- who took care of the Raiders from '83 to '91 ... and wrote a book about his experience with the team which was eventually adapted into the Oliver Stone flick, "Any Given Sunday."

Huizenga went on to star as a weight loss doctor on "The Biggest Loser" for 14 seasons -- while appearing as a medical expert on other shows like "Extreme Makeover," "American Gladiators" and "Dance Your Ass Off."

There's also an O.J. Simpson connection -- Huizenga testified for the defense during O.J.'s murder trial ... claiming he treated Simpson hours before the Bronco chase and had tested him for steroids after the murders.

As for his actual medical credentials -- dude graduated from Harvard medical school.

Charlie Sheen is flat out lying about telling all his partners he's HIV positive ... according to Bree Olson, who is blasting him for keeping her in the dark.

Bree was on "The Howard Stern Show" and almost in tears as she reacted to Sheen's revelation, and his claim that he'd been above board with everyone. You've gotta hear her lose it ... Bree, an ex-porn star, says she was absolutely with Charlie when he was having "night sweats" and first diagnosed.

Aside from concealing the truth from her, she also claims she and Charlie had unprotected sex, and when it was protected ... he insisted on using lambskin condoms, which offer less protection from STDs.

Listen ... Bree is livid. She says all her tests have been negative, but she's pissed her name will forever be linked to HIV because of Sheen.

If what she says is true, she'd have reason to sue or even press criminal charges.

Charlie Sheen said it directly, "I'm here to admit I'm in fact HIV positive" -- and defiantly stated he would no longer fork over millions of dollars to buy silence from friends and sexual partners.

Sheen spoke calmly about his diagnosis with Matt Lauer on "Today"... saying he needed to "put a stop to this onslaught of attacks and untruths." He said he's known for roughly 4 years that he is HIV positive, and had "told enough people that I've trusted to be in the position that I'm in today."

TMZ broke the story ... Charlie says he was betrayed by people he trusted with knowledge of his diagnosis, but they ended up revealing it. Lauer asked if Sheen was still paying people, and he said ... "Not after today I'm not! I release myself from this prison today."

He also talked about the moment he found out about the diagnosis, saying he initially thought he had a brain tumor. As for infecting others ... Sheen said he's warned all of his sexual partners ahead of time -- and there were only 2 with whom he'd had unprotected sex, but they "were under the care of my doctor."

As we've reported ... our sources say Charlie has paid several settlements to sexual partners who said they were NOT warned ahead of time.

Sheen says he doesn't know how he contracted the virus, but feels he has "a responsibility now to better myself and to help a lot of other people."

Kim Kardashian and Kanye West brought daughter Nori along for a 3 hour visit with ailing Lamar Odom.

Sources tell us the West fam piled into the family Range Rover and headed to Cedars-Sinai hospital on Sunday. It was the first time Kanye's seen Lamar since he nearly died just over a month ago -- and we're told doctors hoped Yeezy's presence might help jog LO's memory.

TMZ broke the story ... Lamar's been having trouble recognizing loved ones, and doctors fear he's suffered permanent brain damage.

Charlie Sheen has had HIV for years ... but his position now is that he beat the disease because it's undetectable in his system ... TMZ has learned.

Our sources say Charlie has known for more than 2 years that he was HIV positive ... and one source says he's known way longer than that. We're told Charlie was taking meds for the HIV and has had a series of blood tests, and over time, the virus has been "undetectable" in his system.

We're told Charlie freely admits he's had scores of sexual partners over the years, many of whom had intimate relations with him after his diagnosis. The implication here is clear ... Charlie is saying he didn't deceive anyone, since the blood tests did not reveal the presence of HIV.

Doctors beg to differ and say once someone has HIV they have it for life, at least until medicine advances.

As we reported, Charlie will discuss his HIV status Tuesday on "Today."

Charlie Sheen kept his HIV status under wraps, but everything unraveled when some former partners threatened him with lawsuits ... TMZ has learned.

As we reported, Charlie will appear on "Today" and reveal he's HIV positive. We're told he's known about his status for more than a year and he kept a lid on the information.

We're told things changed when Charlie confided in several friends he thought were confidants ... it turned out they weren't, and spread the word he was HIV positive.

That led to several of Charlie's former partners contacting him and threatening a lawsuit because they were unaware of his status when they had interaction with him. Our sources say Charlie settled several of the cases and, in return for money, got confidentiality agreements.

We're told one of the settlements occurred late last month.

We also know when people go to Charlie's house they are almost always required to sign confidentiality agreements which require anyone who might make a claim to do so in arbitration and not through the courts ... which thereby keeps things private.

Charlie Sheen will reveal to the world that he's HIV positive.

Sources connected to NBC's "Today" tell TMZ ... Sheen will sit down with Matt Lauer on Tuesday morning to make the announcement.

NBC touted the interview in a press release as Sheen making a "revealing personal announcement."

A tabloid report came out Monday claiming Sheen's been keeping the diagnosis secret for years. You've gotta imagine he'll address that report tomorrow morning on "Today."

Khloe Kardashian was rushing to divorce Lamar Odom, so she could be with James Harden -- and only pulled the divorce papers because Lamar was in a coma.

Khloe went on Ryan Seacrest's KIIS-FM radio show to talk about Lamar's health, and her relationship with NBA superstar, Harden -- and she makes it seem like they never broke up throughout Odom's near-death experience.

TMZ broke the story ... when Khloe and Lamar called off their divorce, she hoped they would reconcile. But Monday morning, it sounded like Harden's been waiting in the wings all along. She told Ryan, "There are times I’m sure he was very uncomfortable with things. But I’m glad he’s been so supportive to me."