Nurse!

The star of VH1's "Real Chance of Love" has suffered a major setback in his battle with cancer -- it's spreading and doctors put him back on chemotherapy.

Real's cancer has worsened in his liver and lungs ... according to his brother, Chance, who also tells us Real just had surgery to implant a port that will administer the chemo.

Chance says because the tumors in Real's lungs have grown ... doctors have cut him off from smoking medical marijuana for pain management.

As we reported ... Real's health had been improving. But his bro tells us all the recent bad news hasn't dampened Real's positive outlook. He even posted an update on Instagram after his latest surgery.

Muhammad Ali is sick ... but he's alive ... so says the Champ's daughter Laila Ali.

"He's good," Laila said at LAX on Thursday ... "Rumors about [his health] every year come out."

The latest rumors were spawned from an interview Muhammad's brother gave at a screening of "I Am Ali" last week -- where he reportedly said the 72-year-old icon is in bad shape and housebound.

But Laila says there has NOT been a drastic change in her father's condition recently -- explaining, "He is sick, but he's alive."

FYI -- Muhammad was diagnosed with Parkinson's syndrome in 1984 and his health has been in a steady decline ever since.

As we previously reported, Ali hung out with boxing champ Andre Berto back in April -- and Berto told us he was alert, intelligent and rooting for Kentucky to win the NCAA tourney.

Joan Rivers died because she went into hypoxic arrest during her throat procedure ... cutting off oxygen to her brain -- but the medical examiner is calling it a "predictable complication."

The New York City Office of Chief Medical Examiner released its findings today, revealing that Joan was sedated with Propofol during the procedure.

The investigation also revealed Joan had the procedure to evaluate changes in her voice and to deal with acid reflux.

Joan suffered brain damage due to lack of oxygen.

As for the "predictable complication" ... it appears the Examiner is saying her cause of death is simply a risk associated with either anesthesia, the procedure, or both.

NBC Medical Correspondent Nancy Snyderman caused a maid to get fired ... and it's all because Nancy violated her Ebola quarantine by taking a drive to a local restaurant.

Turns out the chef at The Peasant Grill near Princeton, NJ -- where Nancy went last week to grab some grub -- is the brother of Vilma (she asked us not to use her last name), who works as a maid in town.

After TMZ and other media reported Nancy's breach ... people in the town panicked. They were concerned because Nancy and her crew were all in contact with a cameraman who contracted Ebola, and one of the guys in the quarantined crew went inside the restaurant to pick up food.

We've learned 2 homeowners who had been using Vilma for years freaked out because they feared her brother might have exposed her to the virus. So the 2 homeowners told Vilma she could no longer work with them ... until further notice.

Local health officials say they investigated and there is no risk anyone who was in the restaurant would contract Ebola. But clearly not everyone believes them.

Snyderman has never accepted personal responsibility, blaming the crew for the quarantine violation, even though she was right there in her Mercedes at the restaurant...

A New York businessman is one of the first people to capitalize on the Ebola scare ... and he's making a fortune.

Todd Spinelli tells TMZ ... he developed a dietary supplement in the form of a wafer. He says the supplement prevents healthy cells from breaking down, which keeps them in the body longer than normal. Spinelli claims as a result ... the wafer can help boost the immune system to protect it from contracting diseases, including Ebola.

Spinelli says he trademarked the product -- called Ebola-C -- and went to market on October 1. It is NOT FDA approved, but he says there is a doctor on staff who gives it the A-Okay.

Spinelli claims he's selling up to 14,000 a day at $34.95.

As for what's in Ebola-C ... the C should give it away, because each serving delivers 554% of the recommended daily intake of vitamin C.

It is unclear to us if there's any similarity to Flintstones Chewables.

Leon Spinks' ex-wife says the boxer gave her FULL CONTROL over his medical decisions after they divorced in 2004 -- and if his condition deteriorates she should be the one to call the shots ... not his current wife.

TMZ Sports broke the story ... 61-year-old Spinks is hospitalized in Nevada following complications from a recent surgical procedure. Leon's current wife Brenda says he's on the road to recovery.

But Leon's ex Betty -- who was married to Spinks for 16 years -- says Leon hammered out an agreement in their divorce stating that SHE has been empowered to make decisions on his behalf should be become unable to do so himself.

"I have power of attorney and guardianship," Betty says. "Leon's care should be my decision."

Leon married his current wife in 2011 -- but Betty says that doesn't matter when it comes to Power of Attorney ... she still believes she's legally entitled to be in control.

We looked into Nevada law ... which says that Betty's P.O.A. can be revoked IF Leon entered a new agreement with his new wife.

Just legally marrying someone does NOT automatically vest that person with P.O.A. ... so Leon would have had to have entered a brand new agreement with Brenda.

We reached out to Brenda to find out if such an agreement exits -- but so far, haven't heard back.

Keyshia Cole knows how to brawl -- punching, scratching and pulling hair like a champ -- according to the woman who claims Cole attacked her last month during a jealous rage.

Sabrina Mercadel filed court docs accusing Cole of punching her in the face, slashing her with fingernails and throwing objects at her. Mercadel says her neck and back were hurt -- and her finger was so badly damaged ... it might be useless for good.

TMZ broke the story ... sources say Cole went nuclear when she found Mercadel at an early morning party in the penthouse of Cash Money CEO Birdman -- Cole's rumored bf at the time. For her part, Mercadel says in the docs she was just "visiting a friend." Sources at the party tell us there was no banging going down.

NBC's leading Ebola reporter Dr. Nancy Snyderman blamed her crew more than herself for violating a quarantine after they were potentially exposed to the virus. Yeah, she kinda threw 'em under the bus.

But her co-worker Matt Lauer was willing to call it like it is -- and Nance ... ya done messed up!

Dogs and cats are NOT capable of contracting Ebola ... and are NOT screened on flights to the U.S. from Africa because there's no evidence they can develop the disease ... TMZ has learned.

According to the Centers for Disease Control ... there is NO evidence dogs and cats can either develop or transmit Ebola ... therefore, there's no reason for airlines to either screen or quarantine them.

Several airlines tell us ... they don't control screening. It's determined by the CDC and various health departments.

Bentley, the dog owned by the Dallas nurse who contracted Ebola, has been quarantined by Dallas Animal Services ... and that set off a panic. Based on what we're told, the pooch is not at risk.

Fresh off a night of partying with Lily Allen, One Direction heartthrob Harry Styles was forced to pull over to the side of an L.A. freeway and puke his adorable, ponytail-wearing guts out.

Still doable.

Matt Lauer was more honest than any of his colleagues Tuesday ... telling our photog that Nancy Snyderman was squarely at fault for violating the Ebola quarantine ... something no one, including the doc, has said.

We got Matt coming out of the "Today" studios and asked about Snyderman's apology, in which she says her crew did indeed violate the quarantine ... she did NOT take personal responsibility, even though she was in the back of her Mercedes for a restaurant run recently.

Matt didn't mince words, and said Nancy's part of the crew and assessed the blame where it should lie.

Chris Brown is not a doctor -- he doesn't even play one on TV -- and he's now learned to keep his mouth shut when it comes to important medical issues like the Ebola crisis.

If you missed it ... Chris tweeted this gem to his 13.7 million followers Monday morning: "I don't know ... but I think this Ebola epidemic is a form of population control. S**t is getting crazy bruh."

The immediate and furious backlash included ... "You're not a smart person ... at all," and "You believe this based on what evidence? Oh yeah, none" -- and "Why morons gotta be famous?"

CB conceded defeat after just 3 minutes by tweeting, "Let me shut my black ass up!" But the angry responses kept coming.

Amanda Bynes is filled with anger as she sits in a Pasadena mental facility ... after her parents created an elaborate ruse to get her committed.

TMZ broke the story ... Amanda's parents worked with Sam Lutfi to lure her from NYC to LA Friday. Lutfi convinced her to take a car service to what she believed was a Pasadena law office, where she would meet with a lawyer about suing her parents for abuse. The building was actually a mental facility. When she walked in the front door, she was restrained and involuntarily committed.

Sources familiar with the situation tell TMZ ... Amanda feels utterly betrayed and says her relationship with her parents is "destroyed forever." Although she's had a poor relationship with her dad, she had warm feelings for her mom ... until Friday.

We're told Amanda is in the women's lockdown section of the facility ... where she is showing fits of anger. Doctors are medicating her, but it takes time for the meds to kick in.

Here's the long-term problem. As TMZ first reported ... Amanda's parents will seek and, almost certainly get, another conservatorship before she leaves the facility in 2 weeks -- doctors got the 72-hour hold extended by 14 days. But everyone involved concedes ... it will be extremely difficult to manage Amanda given her hatred for her parents.

Mark Zuckerberg is going all Bill Gates .... giving a massive amount of money to help fight the world's biggest health crisis ... Ebola.

Zuckerberg and his wife Priscilla just donated $25M to the Centers for Disease Control Foundation ... he says he wants to stop the epidemic from becoming a long-term crisis like HIV or polio.

Zuckerberg said the infusion of $$$ is the fastest way to get help to frontline responders, saying "These people are on the ground setting up care centers training local staff, identifying Ebola cases and much more."

It's shocking ... NBC News has dug an even deeper hole for itself in it's self-created Ebola scandal. Brian Williams just read Dr. Nancy Snyderman's tepid, vague mea culpa in which she never takes personal responsibility for violating the quarantine after being exposed to the Ebola virus.

As TMZ reported ... Snyderman and 2 members of her crew -- all under quarantine -- made a food run to Peasant Grill near Princeton University. Sources say New Jersey health officials investigated and concluded based on witness accounts that Snyderman was in the car while a crew member got the grub.

Williams just read Snyderman's statement on "NBC Nightly News," in which she says, "While under voluntary quarantine guidelines, which called for our team to avoid public contact for 21 days, members of our group violated those guidelines and understand that our quarantine is now mandatory until 21 days have passed. We remain healthy and our temperatures are normal."

She's kidding, right? SHE violated the quarantine, yet never took personal responsibility.

We have repeatedly called and emailed NBC News for comment but they have gone radio silent, saying there were "privacy concerns."

NBC News has taken what could have been a 1 day blip and turned it into a major story.

Amazing.

Little things like an Ebola outbreak and a quarantine weren't gonna stop NBC's Dr. Nancy Snyderman from hitting up her favorite restaurant. Sure, there was a small chance other people could potentially be exposed to the virus ...

But the soup is REALLY good, guys!