For grins and giggles you should read The Great Infuenza before you make stupid comments.
Sorry for being blunt.
For grins and giggles you should learn about the influence of war conditions to spread disease under virtually primitive medical conditions, as well as the illigitimacy of drawing incongruent etiological comparisons across generalized infectious strains, and... oh yeah, how about just checking the news reports every few months, too? Sorry for being blunt.