1. Updated preparedness and response framework for influenza pandemics;Holloway;MMWR. Recomm Rep,2014
2. Centers for Disease Control and Prevention (CDC). How the flu virus can change: “Drift” and “Shift”; 2014. [accessed November 24, 2015].
3. Centers for Disease Control and Prevention (CDC). Avian influenza current situation; 2015. [accessed February 2, 2016].
4. World Health Organization (WHO). Questions and answers on pandemic influenza vaccine. Immun, Vaccines Biol; 2007. [accessed April 11, 2016].
5. American Pharmacists Association (APhA). Pharmacy-based immunization delivery; 2016. [accessed August 31, 2016].