Ron Klain, the new Chief of Staff of the White House, has harshly criticized the plans of former President Donald Trump's administration to vaccinate Americans against the coronavirus.

Or, according to Klain, there was no plan.

He described the whole fuss as “chaotic”.

- There was no plan to carry out vaccinations when we came to the White House.

Not outside of hospitals and nursing homes, at least, Klain said at a news conference on Sunday, according to NBC News.

According to Klain, the unplannedness was, among other things, the fact that by Saturday, 41 million doses of the vaccine had been distributed across the country by Saturday, but only 20.5 million of them had been pierced in people's upper arms.

Just over 5 percent of the population has been vaccinated.

Joe Biden wants 100 million people to receive coronavirus vaccination in the first 100 days of his tenure.

Pictured are people queuing for access to a mass vaccination site in Anaheim, California on Jan. 13.Photo: Mario Anzuoni / Reuters

The administration of the new president, Joe Biden, has set an ambitious goal that 100 million people will be vaccinated during the first 100 days of Biden’s term.

- It is our first goal, neither our ultimate goal nor our end point.

We need more vaccine, vaccinators and vaccination sites but we will take care of all three, Klain stressed.

Klain promised federally maintained vaccination centers in those states that do not have enough vaccination sites.

Klain also said the Biden administration is in close contact with vaccine manufacturers to speed up their production.

- We will use all the power we have in the White House.

We will work with Congress to get additional funding to accelerate the pace of vaccination, Klain promised.

In the United States, a target of 70 to 85 percent of the adult population has been vaccinated by the end of the summer.

After that, life could fall closer to normal in the fall.

White House Chief of Staff Ron Klain assured that Joe Biden's administration is much more vigorous in coronavirus vaccinations than its predecessor. Photo: C-Span / Zumapress / MVPhotos

Thanksgiving and Christmas raised clear spikes in U.S. corona infections, but the number of new infections has since leveled off.

In the last six days, the number of new infections has fallen below 200,000.

In all, more than 25 million people in the United States have contracted the coronavirus.

There are more than 415,000 dead.