Localised infection~ Is where the pain can be pinpointed and is coming from the cause itself and the area that it homes at, this would be things like cuts/wounds to the skin or an ingrown toenail. 1.5 Poor personal hygiene, incorrect disposal of rubbish, waste, chemicals and clinical contamination, poor hand hygiene, not wearing P.P.E when needed, not storing or cooking foods properly, not complying with cleaning rotas, overcrowding when an illness is apparent, not following policies or reporting outbreaks or episodes of disease, direct contact with bodily fluids. 2.1 All organisms need different things to grow and thrive, they all need somewhere to grow for instance….. A host,
Unit 4222-265 Causes and spread of infection (ICO2) Understand the causes of infection 1. The differences between bacteria, viruses, fungi and parasites Bacteria belong to a group of single celled microorganisms which are classified as prokaryotes i.e. they do not have membrane bound organelles. They have no true nucleus as the DNA is not contained within a membrane or separated from the rest of the cell, but is coiled up in a region of the cytoplasm called the nucleoid and the cell is surrounded by a cell wall an outer covering that protects the bacterial cell and gives it shape. Viruses are infectious agents, often highly host-specific, consisting of genetic material surrounded by a protein coat.
A parasite is a tiny organism that lives in or on a host (A body) which they use in order to feed. Parasites can cause severe illness's, there are 3 main types of parasites: protozoa, helminths, and ectoparasites. 2. Bacteria salmonella(food poisioning) e.coli causes abdominal pain,cramps and diarreha Staphylococus found on skin Mrsa responsible for many infections. Viruses common cold,flu mumps and measles.
Colonisation occurs whenever any one or more species populate an area. 1.4) Systemic infection means it is in the blood stream through the body. Localised infection means the infection is restricted to one small area only. 1.5) Poor practises include: Not washing your hands correctly, not wearing PPE, not cleaning your surroundings and not covering your mouth or nose when you sneeze / cough. 2) 2.1) Micro organisms need moisture, warmth and time to grow.
Outcome 1 Understand the cause of infection 1.Identify the difference between bacteria, viruses, fungi and parasites. Bacteria Bacteria is a single celled organism, bacteria have evolved to thrive in almost any environment and can be found in almost any substance/surface and also in the human body, only 1% of bacteria is actually harmful. It's bad or infectious bacteria that cause illness as they rapidly reproduce and produce a toxin that kills or mutates cells, bacteria is also self sufficient. Viruses A virus is a small capsule that contains DNA or RNA, viruses, unlike bacteria are not self sufficient and need a host in order to reproduce I.E a human body. When a virus enters the body, it enters some certain cells and takes over making the now host cell make the parts the virus needs to reproduce, the cells are eventually destroyed through this process.
1) Bacteria are living things that are neither plants nor animals, but belong to a group all by themselves. They are very small, individually not more than one single cell. However there are normally millions of them together, for they can multiply really fast. Bacteria are prokaryotes (single cells that do not contain a nucleus). They are ten to 100 times larger than viruses.
In fact only 1% of bacteria are harmful. Viruses can only grow inside the cells of living organisms. They are not living in their own and in that way are different to bacteria, parasites and fungi. All living organisms can contract viruses: humans, plants, fish and animals. Viruses are spread from host to host.
Bacteria reproduces by most commonly occurs by a kind of cell division called binary fission. Binary fission results in the formation of two bacterial cells that are genetically identical. 6. The Archaea these microbes are prokaryotes, meaning that they have no cell nucleus or any other membrane-bound organelles within their cells. 7.
Causes and spread of infection 1.1 Differences between Bacteria, Viruses, Fungi and Parasites: Bacteria are tiny microorganisms that belong to a group all by themselves; they usually exist in groups of millions at a time and can multiply and spread around anything they come into contact with. For example, a gram of soil will contain approximately 40 million living bacteria cells and a millilitre of fresh water will contain approximately 1 million living bacteria cells. Viruses are tiny organisms that can progress to mild or even severe illnesses in humans, all animals and plants. A virus is 100 times smaller than a single bacteria cell, however they are not alive, they cannot multiply on their own and they would need to enter a human or animal cell and take over the cell to help them multiply. A virus has three main parts; nucleic acid which is the core of the virus and holds the DNA; a protein coat which covers the nucleic acid to protect it and the lipid membrane which covers the capsid, however many viruses do not have a lipid membrane and are therefore called naked viruses.
Causes and spread of infection 1. Understand the causes of infection 1. Identify the differences between bacteria, viruses, fungi and parasites Bacteria is living things that are neither animals or plants but a group that belongs to themselves. Bacteria are prokaryotic microorganism, which is a single cell that doesn’t contain nucleus. Viruses are a small infectious agent that can multiply only inside living cells of organisms.