Measles and Vaccines Quiz https://publichealth.jhu.edu/2025/what

What is the primary reason for the recent measles outbreaks in the U.S.?

• High vaccination rates

• Misinformation and falling vaccination rates

• Increased travel to measles-free countries

• New strains of the measles virus

How does measles primarily spread?

• Through insect bites

• Through the air and via droplets

• Through direct contact with an infected person

• Through contaminated water

At what age is the first dose of the MMR vaccine recommended in the U.S.?

• 6-9 months

• 4-6 years

• 12-15 months

• 2-3 years

What percentage of a community needs to be vaccinated to prevent measles outbreaks?

• 95%

• 90%

• 70%

• 80%

What is a potential consequence of measles infection?

• Increased immunity to other diseases

• Permanent immunity to measles

• Improved respiratory health

• Weakened immune system