'Cost to the economy of influenza (flu)' (2018) Economic burden of seasonal influenza in the United States : https://pubmed.ncbi.nlm.nih.gov/29801998/ https://

'Cost to the economy of influenza (flu)' (2018) Economic burden of seasonal influenza in the United States : https://pubmed.ncbi.nlm.nih.gov/29801998/ https://pubmed.ncbi.nlm.nih.gov/29801998/