Microorganisms And Micro-Organisms

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Recommended: Importance of microorganisms to human affairs

Infection is caused by micro-organisms or harmful pathogens which can be found everywhere i.e. in the air, in the water we drink and the air. Some microorganisms or microbes can be helpful to us and an alternative name for them is normal flora. However, other microbes can be harmful and detrimental to our health and these can be called pathogens. Microbes would prefer to grow in an area of no competition thus with the presence of large numbers of flora pathogens or harmful microbes are discouraged to grow. This helps people stay healthy and fight any infections introduced to our bodies.
Normal flora usually lives within the intestines and help digest food as well as protecting our intestines from invading pathogens. They can also be found on our skin and will eat pathogens or dead skin. Pathogenic microbes are transient and this means they can be transferred from one individual to another.
All pathogenic micro-organisms are different however they can be divided into 4 main sub groups bacteria, viruses, fungi and parasites. Examples of bacteria are MRSA and tuberculosis. They are larger than viruses on average but still need microscopes to view them. Viruses are the smallest of the three types and some examples include HIV, hepatitis B, …show more content…

Examples of diseases that are systemic include malaria and influenza which have devastating effects on people today. The symptoms of systemic infections are quite universal as they first include the weakness of the body, then chills followed swiftly by chills and aching joints. This process is first started off by a harmful pathogen with the right sort of environment to grow in and no normal flora. The pathogen also needs a route of entry and transmission. Multiplication then begins and after a certain number of pathogens are produced the host begins to feel ill and thus some pathogens will exist and the cycle or chain begins

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