Certified in Public Health (CPH) Practice Exam 2025 – All-in-One Resource to Ensure Exam Success! Flash Cards

Question: 1 / 400

Why must new influenza vaccines be developed annually?

?

Mutations result in new strains of the virus that are not affected by existing vaccines

Next
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy