WATCH: Biden Will Announce Rules To Boost Vaccine Requirements As A Condition Of Employment

Live stream scheduled to begin at 5:00 p.m.​

Updated September 9, 2021 at 3:30 PM ET

President Biden on Thursday is set to announce new federal rules that will require that all businesses with 100 or more employees ensure that every worker is either fully vaccinated for COVID-19 or submit to weekly testing for the coronavirus.

The Department of Labor's Occupational Safety and Health Administration will formally issue the rule in coming weeks, a senior administration official told reporters. The rule would apply to more than 80 million workers, the official said.

The announcement is part of what the White House calls a new six-pronged strategy to contain the delta variant of the coronavirus as confirmed cases continue to surge across the country. Biden is set to deliver remarks at 5 p.m. ET Thursday.

The official repeated a line often said by the Biden White House, calling the current surge of infections "a pandemic of the unvaccinated."

"Their actions are affecting us all," the official continued.

Vaccine requirements for federal workers

Biden will also announce that federal workers and contractors will be required to be vaccinated for COVID-19, eliminating an option for unvaccinated workers to be regularly tested instead.

White House press secretary Jen Psaki said federal workers would have about 75 days to become fully vaccinated once Biden signs an executive order. She said that there would be limited exemptions for religious or medical reasons.

Some federal agencies will require proof of vaccination while others will accept attestations, Psaki said. Workers who fail to comply with the requirement will be counseled by their human resources departments, and then will face "progressive disciplinary action," she said.

Similar steps for health workers and teachers

The president's plan to combat the pandemic this fall has six main components, as detailed by a White House fact sheet.

Biden will announce that 17 million health care workers at hospitals and other health care settings like dialysis clinics and home health agencies that receive Medicare or Medicaid funding will have to be vaccinated.

There will be similar requirements for teachers and staff at the Head Start early education program and other federally funded educational settings, such as schools on military bases.

The government also plans to boost access to home tests for COVID, buying nearly $2 billion in tests for a variety of settings ranging from shelters to food banks. Walmart, Amazon and Kroger will sell home tests at cost for the next three months, according to the fact sheet.

The Defense Department plans to send more teams to states where hospitals have reached capacity with COVID patients, and the government also will ship more monoclonal antibody treatments.

The COVID context

The speech comes as the United States has already recorded more than 40 million confirmed cases of the virus, with some 650,000 American lives lost as a result, according to researchers at Johns Hopkins University.

COVID-19 hospitalizations and deaths have spiked recently, due in large part to the delta variant, which experts say appears to be twice as transmissible as the highly contagious original strain.

The vast majority of hospitalizations and deaths in the current surge are among the unvaccinated. About a quarter of U.S. adults have not gotten a vaccine dose, according to the Centers for Disease Control and Prevention.

Biden has overseen ramped-up efforts to combat the virus through vaccinations and mask usage, but vaccine hesitancy — particularly among white Republicans — and the politicization of masks have hindered the nation in the fight to stamp out the virus.

And as children and teenagers return to school and the weather begins to cool, experts have warned that the country is likely to continue to see virus surges if more drastic steps are not taken.

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