In this week’s reading a disease called Bubonic Plague appeared from trade paths opening in Asia and they were supported by merchants and soldiers in eastern Asia to China. The disease syphilis started to spread in 1500’s and 1600’s from individuals having sex in different towns and cities. Another disease called Tuberculosis that spread in the 1800’s. In spread across the air in cities and urban streets that crowded in Europe and the United States. Aids was another disease that spread between the 1900’s and the start of the 2000’s. It increased the differences in overall wealth with the core countries and periphery countries and increased that chance of someone getting the diseases. According to the reading the rise of population in an area