You See a Blog Post on Social Media Stating That

You see a blog post on social media stating that this year's flu vaccine is not very effective against the strains of flu currently going around.The post urges readers to avoid the vaccine because it might actually give you the flu.
What steps should you take and what types of information should you consider when evaluating this statement before deciding whether to get vaccinated with this year's flu vaccine? Be sure to include examples of primary versus secondary literature.