Where did the Black Death start in Europe? Where was the Black Death most virulent? Where did the Black Death originate? Where did the Black Death start in England? Where did the 1918 influenza pandemic start? Where did the H1N1 pandemic start?
What is the false connection between polio vaccine development and HIV? Where did typhus originate and what is the supporting evidence? When did the polio virus start? What started it? What virus or mutation caused it? How does it spread? What are the preventative measures to stop them? As ...