"Lectins" . "Orthomyxoviridae" . "Human proteins" . "Collectins" . "Influenza pandemics" . "Virus families" . "Blood proteins" . "Public Health Emergency of International Concern" . "Epidemiology" . "Immune system" . "Infectious diseases" . "21st-century epidemics" . "Influenza A virus subtype H1N1" . "2000s disease outbreaks" . "2009 swine flu pandemic" . "2009 health disasters" .