How do pandemics begin and how can we end them? #breakthroughjuniorchallenge

This is my entry for the #breakthroughjuniorchallenge Enjoy!
How do pandemics begin and how can we end them? #breakthroughjuniorchallenge
How do pandemics begin and how can we end them? #breakthroughjuniorchallenge
How do pandemics begin and how can we end them? #breakthroughjuniorchallenge

#breakthroughjuniorchallenge,