Neza-Chalco-Itza: One of Mexico City's many barrios, Neza-Chalco-Itza is the largest slum in the world with roughly four million people. Slums in Mexico city began growing in the early 1900s when the railroad brought new industry -- as well as new industrial zones -- to the city.
Bloodborne pathogens are infectious microorganisms in human blood that can cause disease in humans. These pathogens include, but are not limited to, hepatitis B (HBV), hepatitis C (HCV) and human immunodeficiency virus (HIV). Needlesticks and other sharps-related injuries may expose workers to bloodborne pathogens.
A pathogen is an infectious agent that causes illness to the host. These are commonly attributed to be bacteria and viruses. They can also be simple organisms, such as Naegl â¦ eria fowleri [the uncommon brain eating ameoba].Most pathogens are infectious microbes, such as bacteria or viruses, which are capable of causing disease.Other parasites, such as fungi and protozoans, are also considered pathogens.Because not all microbes are harmful, pathogens refer specifically to those that can cause disease or other harm.   pathagens are bacterias.which cause people to get sick.hese are commonly attributed to be bacteria and viruses. They can also be simple organisms, such as Naegl â¦ eria fowleri [the uncommon brain eating ameoba]. Most pathogens are infectious microbes, such as bacteria or viruses, which are capable of causing disease.