One of those problems involves the Pfizer vaccine.

Pfizer’santi-coronavirus shotis meant to be 95 percent effective with no serious side effects.

This is because Trump administration officials refused an offer to buy extra doses a few months back.

Pfizer signage

“It’s clear that Pfizer made plans with other countries.

Many have been announced.

We understand those pieces,” he said.

Vaccine simulation in the UK

Warp Speed officials say it is their strategy to source a variety of vaccines across different vaccine manufacturers.

We could have all of them.

Woman getting a shot

COVID-19 vaccine study subject