Engrossing true stories of the pioneers of epidemiology who risked their lives to find the source of deadly diseasesampmdashnow revised to include updated information and a new chapter on Covid19. More people have died in disease epidemics than in wars or other disasters but the process of identifying these diseases and determining how they spread is often a terrifying gamble. Epidemiologists have been ignored mocked or silenced all while trying to protect the population and identify ampldquopatient zeroamprdquoampmdashthe first person to have contracted the disease and a key piece in solving the epidemic puzzle. Patient Zero tracks the gripping tales of eight epidemics and pandemicsampmdashhow they started how they spread and the fight to stop them. This revised edition combines a brandnew design with updated information and features diseases such as Spanish Influenza Ebola and AIDS as well as a new chapter on Covid19.