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Moderna CEO warns Americans may need a 5th mRNA booster shot in the fall since previous boosters lose effectiveness.

Stephane Bancel, the CEO of Moderna, spoke on Thursday at a Goldman Sachs conference of healthcare professionals, DailyMail.com reported.

Bancel said a 5th mRNA booster is necessary in the fall because 3rd and 4th booster shots administered this fall was "not going to hold great".

"I still believe we're going to need boosters in the fall of '22 and forward," Bancel said.

He said a vaccine in development to combat the mild Omicron variant will not be ready in the next few months.

Bancel added the elderly and those with underlying health conditions might need annual booster shots for the rest of their lives.

"We have been saying that we believe first this virus is not going away," Bancel said.

"We're going to have to live with it."

In related news, the CDC changed the definition of "fully vaccinated" to "up to date".

"We are now recommending that individuals stay up to date with additional doses that they are eligible for," said CDC Director Rochelle Walensky on Wednesday.

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On Wednesday, CDC Director Rochelle Walensky explained why the CDC continues to play fast and loose with COVID rules.

Democrats and health officials reacted with outrage when the CDC shortened the quarantine guideline from 10 days to five days for people who test positive with no symptoms.
 
RELATED: Fauci says 4th booster is coming
 
On Wednesday, Walensky appeared on both CBS Mornings and CNN's New Day, to contain the damage. She said she hopes the guideline change will make it easier for people to do the right thing and willingly isolate themselves.

"We really do need people to follow these recommendations for them to work," she said.

Under the new guidelines, people who tested positive but remain asymptomatic are asked to quarantine for 5 days then wear a mask around others for the next five days.

On Tuesday, the CDC downgraded the Omicron variant to a tropical storm.

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The CDC says the Delta variant is responsible for 77% of new COVID cases, while the Omicron variant is only responsible for 23% of cases.

The CDC previously said the Omicron variant had become the dominant strain in America.

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By now the CDC's credibility is pretty much shot. Even Pres. Joe Biden has thrown in the towel.

Before heading to Delaware for a one week vacation on Monday, Biden told a group of governors there is "no federal solution" for COVID, and that the COVID problem "gets solved at the state level."
 

This is exactly what Republican governors wanted all along.

Does this mean Biden will cancel his federal vaccine mandates?
 

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The Centers for Disease Control in Atlanta is hunting down all passengers who flew into the United States from South Africa and southern African nations.

The Reuters news agency reported Wednesday morning that it has seen a copy of a letter from the CDC asking airlines to turn over the names of all passengers from that region.

The report comes amid heightened concerns over the new omicron variant, which was first detected in South Africa last week.

The CDC plans to turn over the list of names to local and state governments to begin the arduous process of testing the visitors for Covid-19. But they could be anywhere in the US by now.

So far, the UK has reported 22 cases of omicron infections.

South Africans are reportedly furious that the World Health Organization and the CDC have targeted their nation for the new variant.

The African continent has the lowest cases of Covid-19 on the planet, despite a 6% vaccination status.

A South African doctor who treated omicron patients has stated the new variant causes "mild" symptoms in the infected.

"It actually started with a male patient who's around the age of 33," Dr. Angelique Coetzee told the BBC on Sunday. "And he said to me that he's just [been] extremely tired for the past few days and he's got these body aches and pains with a bit of a headache.

Dr. Coetzee said the first patient had a "scratchy throat" and didn't develop a cough or lose his sense of taste or smell. His family tested positive for Covid-19.

She has since treated more omicron patients -- all with "mild" symptoms. None were hospitalized.

Media outlets claim cases of the omicron variant has surged 400% in Africa.