This episode tells some history during time the pandemic and also giving QnA about pathogens. Reference: Bailey Scott's Diagnostic Microbiolog13th Ed., Question #1, 836 page PART VI Virology, Viruses in Human Disease CHAPTER 66 839, Bloodstream Infections CHAPTER 68 861. Influenza - causes, symptoms, diagnosis, treatment, pathology http://osms.it/more. Bailey Scott's Diagnostic Microbiolog13th Ed., Question #2, page 308 PART III Bacteriology, B.& A. Enterobacteriaceae CHAPTER 20 309. question #3 Bailey Scott's Diagnostic Microbiolog13th Ed., Vibrio, Aeromonas, Chromobacterium, and Related Organisms CHAPTER 26,. https://www.cdc.gov/cholera/general/index.html. Question #4 https://www.who.int/emergencies/diseases/novel-coronavirus- 2019/question-and-answers-hub/q-a-detail/q-a-coronaviruses, https://www.who.int/news-room/fact-sheets/detail/middle-east-respiratory- syndrome-coronavirus-(mers-cov), https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2874076/ : https://www.history.com/topics/middle-ages/black- death#:~:text=The%20plague%20is%20thought%20to,as%20early%20as%203000 %20B.C.