Pandemic Influenza top.8 task2

A pandemic is a global disease outbreak. It occurs when a new influenza virus emerges for which there is little or no immunity in the human population. Countries might, through measures such as border closures and travel restrictions, delay arrival of the virus, but cannot stop it. This is really bad for a school because it one kid has it they will keep passing it on. I think that is they reason why we have to get shots. Its also says you could die from this. So that is why Safety problem.