New parents may like this site for vaccine information. Who doesn’t love Khan Academy?!! Great for kids but parents too! Start an account and log in! The link below answers 5 common flu vaccine excuses. Of course YOU, the MD and CDC are best resources for health, disease and vaccine information this is just a fun resource.
https://www.khanacademy.org/science/health-and-medicine/infectious-diseases/influenza/v/5-common-flu-vaccine-excuses