Bacteria is something else that you would need to know
By taking their pump as many times a day as prescribed of take it when needed.
Answer by JKismyhusbandbae: heroin
Why: Heroin and morphine are related. They are both derived from opium. And known as painkillers.
Pandemics, diseases which spread to most populated regions with a high degree of mortality, have been recorded several times in world history, the first being the Plague of Justinian in 541 CE. The Black Death, also known as the Second Pandemic, was one of the most catastrophic events in human history.