- President Biden says thatAmerica's vaccine rollout

has been a dismal failure so far

and blames the Trump administration

for not acting with moreurgency and coordination.

- We didn't get into this mess overnight

and it's gonna take monthsfor us to turn things around,

but let me be equally clear,we will get through this.

We will defeat this pandemic.

- [Heather] The CDC saysthat just 2.4 million

have received the neededtwo doses of the vaccine,

with 100s of millionsnecessary to end the outbreak.

On Thursday, Biden signed

10 executive orders to do just that.

One expands vaccine production,others mandate masks

for travel, lay the groundwork

for reopening schools and businesses,

and order FEMA to setup vaccination centers.

Next month, the CDC will make

vaccines available in pharmacies.

Biden is promising 100 million

vaccinations in his first 100 days.

It sounds good, but it'sactually just a 10% increase

over the current daily pace already set

under the Trump administration program.

An AP reporter asked Biden

if his target should be more ambitious,

a point pushed by somepublic health experts.

- [Reporter] Is that high enough.

Shouldn't we set the bar higher?

That's basically wherethe US is right now.

- When I announced it, youall said it's not possible.

Come on give me a break, man.

It's a good start, 100 million, thank you.

- [Heather] The President dismissing

the question before leaving the room.

Meanwhile, Biden's chief medical advisor,

Dr. Anthony Fauci, saysthe coveted herd immunity,

where a large percent of thepopulation is naturally immune

to the virus could beachieved later this year.

- If we get the majority ofAmerican, 70 to 85% vaccinated

by then we could have adegree of herd immunity

that would get us back to normal.

The best case scenario forme is that we'd get 85%

of the people vaccinatedby the end of the summer.

- [Heather] The Other big concern,

new mutations of the virusin the United Kingdom

and South Africa, andscientists wonder if one

in California is behind thesurge in cases in Los Angeles,

and if some of those mutations

could weaken theeffectiveness of the vaccines.

- Work needs to be done inthe laboratory to confirm

whether or not the vaccineis gonna protective.

- One study says the South Africa-variant

could pose a problem for the vaccines,

but Fauci and other expertsbelieve the mutations

won't significantly decreasethe vaccine's effectiveness,

although more research is still needed.

But, since the mutationsare more contagious

they could lead to afaster spread of the virus

meaning more cases anddeaths, and that increases

the urgency to get as many people

vaccinated as soon as possible.

Heather Sells, CBN News.