(WASHINGTON, D.C.) — With the Biden administration promising full speed ahead when it comes to distributing vaccine in an attempt to disperse 100 million doses in 100 days, President Joe Biden on Tuesday announced the U.S. government is working with Pfizer and Moderna to purchase an additional 200 million doses, 100 million from each, that should arrive by the summer.

That number will be added to the 200 million doses from Pfizer and 200 million from Moderna former President Donald Trump oversaw his administration purchase — which will be delivered in July.  Because both vaccines are given in two doses, the amount is enough to inoculate 200 million Americans.

With the incoming order from the Biden administration, that ups the total number of Americans expected to be vaccinated up to 300 million.  According to 2019 census estimates, the nation’s overall population rests at 328.2 million.

Doctor Anthony Fauci previously said that roughly 80 percent of all Americans need to complete both doses of the COVID-19 vaccine in order for the nation to begin experiencing “herd immunity.”

President Biden added he is increasing the number of vaccines being shipped to states, upping the number from 8.6 to 10 million a week.  The president says states will be alerted of incoming shipments three weeks in advance.

Despite the effort, the nation is still grappling with a vaccine shortage and the Biden administration did not disclose any plans to ramp up production.

President Biden remained adamant that Americans need to understand that it will take time to vaccinate the vast majority of the population and to remain vigilant in order to prevent the infectious virus from spreading — and mutating.

COVID-19 has infected nearly 25.5 million people and has killed over 425,000, reports Johns Hopkins University.