Defence against infectious pathogens

Whilst other potentially problematic particles exist such as yeasts, fungi and pollens, it is primarily bacteria and viruses that are responsible for the majority of infectious illnesses. But what are the differences between bacteria and viruses and how can you defend against these threats in your setting?

Bacteria

By definition, bacteria are microbes with simplistic cell structures. This means that they are without a nucleus or any membrane-bound organelles and their genetic information is usually contained within a single loop of DNA. In some cases, a strain of bacteria may evolve to form extra genetic material named a plasmid – this will often grant the bacteria certain advantages such as resistance against antibiotics.