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Moderna has requested FDA approval to extend its COVID-19 vaccine use to children aged 12-17, claiming 100% efficacy in trials. This would make it the second vaccine available for kids before the school year. Experts emphasize the importance of vaccinating children to boost immunity rates. Meanwhile, Johnson & Johnson's vaccine shelf life has been extended by six weeks, allowing storage for up to four and a half months, which helps prevent dose wastage as demand decreases. Kaiser Health News provides these updates.

What age group is Moderna seeking FDA approval for its COVID-19 vaccine?

• 12 to 17 years

• 18 to 24 years

• 25 to 30 years

• 5 to 11 years

What is the reported effectiveness of Moderna's vaccine in the 12 to 17 age group?

• 100%

• 85%

• 95%

• 90%

Why is vaccinating children considered important by experts?

• To achieve herd immunity

• To increase immunity rates

• To reduce vaccine costs

• To eliminate the virus completely

How long can the Johnson & Johnson vaccine now be stored without losing efficacy?

• Six months

• Three months

• Two months

• Four and a half months

What is the main benefit of extending the shelf life of the Johnson & Johnson vaccine?

• Increasing production

• Reducing costs

• Preventing wastage

• Improving efficacy