What is endurance hunting? How does it work? What are its virtues?

Answer the below questions in paragraphs, with complete sentences. Language should be formal. Answers should exist as stand alone entities that can be read without reference to the questions. Answers should be no longer than 300 words

What is endurance hunting? How does it work? What are its virtues?
Considering HIV and Ebola, why has one resulted in an epidemic and one in a pandemic? And which is which?