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The Complex Reasoning Process of Identifyng and Applying Patterns

Pandemics in history and now which have been originiated from animals are:

-Pigs which were the cause
-Birds which were the cause
-rats which spread
-mouse which spread
-monkeys which spread

Most of pandemics and epidemics in history have orignated from animals ,E.g Swine Flu was caused from pigs,  Avian Flu was caused from birds, The Plague was spread from rats and Ebola was spread from monkeys. 

In the future, pandemics may come from other animals e.g dogs, bats. Our close contact with other animals contributes to the danger of having a pandemic.