Differences between recent disease outbreaks

The documentary slideshows linked below present the various ways in which this question is answered. 1. World Health Organization: Definitions of, and activities related, to “pandemics:” Emergencies preparedness, response (https://www.who.int/csr/en/.) What is a pandemic? (https://www.who.int/csr/en/.) Did the Ebola Epidemic Become a Pandemic? (https://www.nationalgeographic.com/tv/.) Write out, using your own words, the 4 differences between recent disease outbreaks such as Ebola and Zika, which we do not consider pandemics; and two recent disease outbreaks that we consider pandemics (e.g. HIV/AIDS and Pandemic Flu).