What is the definition of pandemic? What does pandemic mean? I've been hearing about the word a lot lately and I searched for the meaning of pandemic and here's what I found out.
Pandemic usually applies to world-wide spread. It has no bearing on seriousness of the disease or its subsequent death reate. So, pandemic diseases are nothing to fear in itself.
Each infectious diease is different. There is no way to estimate the severity of a pandemic infectious disease before ir reaches the human population. We cannot assume that world-wide spread among animal species will ever affect humans.