The Causes and Spread of Infections
UNIT 4222-265
The causes and spread of infection
Outcome 1: understand the causes of infection
Bacteria are a very small, self-sufficient, one-celled organism that thrives in a variety of environments. However, many bacteria thrive in the mild 98.6 health body environment, some of these environmentally content bacteria in your body are actually good for you; its only 1% that isn’t.
Some examples of the sicknesses that bacteria cause are; * Impetigo * Meningitis * Tuberculosis * UTI (urinary tract infections) * Conjunctivitis * Gastroenteritis
A virus is a capsule containing genetic material, even smaller than bacteria. The main task of virus is to reproduce. However, viruses need a suitable host to multiply, unlike bacteria.
Some examples of the illnesses that viruses cause are; * Influenza * Common colds * Meningitis * Chicken pox/shingles * Bronchitis
Fungi can be seen as moulds, yeasts and mushrooms. They can all live in your body, usually without harm and some offer benefits as well. For example, penicillin comes from fungi, and this is a ‘life saving’ antibiotic that kills harmful bacteria. Fungi are also required to make certain foods, such as bread, cheese and yoghurts. Other fungi aren’t as beneficial and can cause illnesses.
Some examples of the illnesses fungi can cause are: * Thrush * Athletes foot * Ringworm * Toenail infections
A parasite is a form of living creature/insect, which spends some or all of its life cycle within a host. Parasites that live on the surface of the host are called ectoparasites and those that live inside the host are called endoparasites.
Some examples of parasites that affect humans are; * Head lice * Scabies * Roundworm * Tape worm * Malaria * Bed bugs.
Infection is caused by pathogens- these are any living particle that is capable of causing a disease; this could be to plants or animals. Bacteria and viruses are both
The causes and spread of infection
Outcome 1: understand the causes of infection
Bacteria are a very small, self-sufficient, one-celled organism that thrives in a variety of environments. However, many bacteria thrive in the mild 98.6 health body environment, some of these environmentally content bacteria in your body are actually good for you; its only 1% that isn’t.
Some examples of the sicknesses that bacteria cause are; * Impetigo * Meningitis * Tuberculosis * UTI (urinary tract infections) * Conjunctivitis * Gastroenteritis
A virus is a capsule containing genetic material, even smaller than bacteria. The main task of virus is to reproduce. However, viruses need a suitable host to multiply, unlike bacteria.
Some examples of the illnesses that viruses cause are; * Influenza * Common colds * Meningitis * Chicken pox/shingles * Bronchitis
Fungi can be seen as moulds, yeasts and mushrooms. They can all live in your body, usually without harm and some offer benefits as well. For example, penicillin comes from fungi, and this is a ‘life saving’ antibiotic that kills harmful bacteria. Fungi are also required to make certain foods, such as bread, cheese and yoghurts. Other fungi aren’t as beneficial and can cause illnesses.
Some examples of the illnesses fungi can cause are: * Thrush * Athletes foot * Ringworm * Toenail infections
A parasite is a form of living creature/insect, which spends some or all of its life cycle within a host. Parasites that live on the surface of the host are called ectoparasites and those that live inside the host are called endoparasites.
Some examples of parasites that affect humans are; * Head lice * Scabies * Roundworm * Tape worm * Malaria * Bed bugs.
Infection is caused by pathogens- these are any living particle that is capable of causing a disease; this could be to plants or animals. Bacteria and viruses are both