MCQs on Smallpox virus (Poxvirus) Click World Health Organization (WHO) website for more questions and answers about smallpox: https://www.who.int/news-room/questions-and-answers/item/smallpox Figure1: cowpox and smallpox pustules 1. Who is credited with the discovery of vaccination using cowpox to protect against smallpox? a) Edward Jenner b) Jonas Salk c) Louis Pasteur d) Robert Koch 2. Smallpox exists as two distinct subtypes, Variola major and Variola minor. Which su...