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Pfizer is seeking FDA approval for a third dose of its COVID-19 vaccine, claiming it boosts antibody levels significantly. Clinical trials involved 306 participants aged 18 to 55, who received the booster 4-8 months after their second dose. Meanwhile, Air Canada mandates all employees to be vaccinated by October 30th, with no testing alternative, aligning with national transportation mandates. Kaiser Health News provides a summary of current health headlines.

What was the age range of participants in Pfizer's clinical trials for the third dose?

• 25 to 65

• 18 to 55

• 20 to 60

• 16 to 50

By when does Pfizer hope to submit its application for the third dose approval?

• By the end of the month

• By the end of the year

• By the end of the week

• By the end of the day

What does the current FDA approval for Pfizer's vaccine cover?

• Single-dose regimen for adults

• Three-dose regimen for all ages

• Two-dose regimen for people 16 and older

• Two-dose regimen for children

What is Air Canada's policy for employees who are not vaccinated by the deadline?

• They will receive a warning

• They will be required to undergo regular testing

• They will be placed on unpaid leave or fired

• They will be allowed to work remotely

What is the reason behind Air Canada's vaccination policy?

• To increase company profits

• To improve customer satisfaction

• To comply with a national mandate

• To reduce employee turnover