Name	Info	Provider	Link
Flu	free resource	MedlinePlus Health Information	https://medlineplus.gov/flu.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30869007/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/30869007
	subscription/membership/fee required	Cambridge University Press	https://www.cambridge.org/core/product/identifier/S0950268818003540/type/journal_article