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The federal government, in collaboration with Kaiser Health News, has secured agreements to purchase an additional 200 million doses of COVID-19 vaccines from Pfizer and Moderna, increasing the total supply to 600 million doses. President Joe Biden announced that the delivery of 100 million doses will be expedited to May. The CDC has updated guidelines stating that fully vaccinated individuals do not need to quarantine if exposed to the virus, provided they meet certain criteria. However, they should still monitor for symptoms and adhere to public health measures. Special thanks were given to Kaiser Health News for their contribution.

What is the total number of COVID-19 vaccine doses the US government plans to have after the new purchase agreements?

• 700 million

• 600 million

• 500 million

• 400 million

By when does President Biden aim to have enough vaccine doses for every American adult?

• End of March

• End of May

• End of the summer

• End of June

According to the CDC, what is the quarantine guideline for fully vaccinated individuals exposed to COVID-19?

• They should quarantine only if they have symptoms.

• They must quarantine for 7 days.

• They do not need to quarantine if they have no symptoms.

• They must quarantine for 14 days.

How long after receiving the second vaccine dose does the CDC consider someone fully vaccinated?

• Two weeks

• One week

• Immediately

• Three weeks

What public health measures does the CDC recommend continuing even after vaccination?

• Mask-wearing and social distancing

• Traveling internationally

• Avoiding exercise

• Eating out frequently