They replicate by invading targeted cells of their host and taking over genetic material responsible for reproduction. These are tiny infectious agents that are so small that even a light microscope will not detect them visibly, infecting all kinds of cells from bacteria, fungi, plants, animals and humans. Some of their common illnesses and infections include colds, influenza, chicken pox, measles, mumps, herpes, norovirus and cold sores. Fungi are simple plant like single-celled organisms, reproducing both sexually and asexually via spores. They take on various forms and can include yeast and moulds.
Understanding the causes and spread of infection The differences are that bacteria are an organism which produces toxins which grow and then divide. Virus - are smaller than a cell. It can't reproduce outside the cell unlike bacteria, so they invade the cells and inject the genes into the nucleus and creates copies of itself Fungi - causes disease by absorbing nutrients, and producing toxins Bacteria, fungi and viruses are all separate entities and are completely different from each other. Parasites, however, can refer to a number of different things including bacteria, fungi and viruses. A parasite is any organism which lives inside a different organism in a symbiotic relationship in which only the parasite benefits from the symbiosis.
This usually means that the bacteria have been able to invade either your circulatory system or the lymphatic system and spread. Localised infection - is restricted to a ceratin region of your body 1.5 not washing your hands, not wearing PPE, not storing or cooking foods properly, not cleaning your surroundings, not covering your nose or mouth when sneezing or coughing. 2.1 Food,Acidity,Temperature,Time,Oxygen,& Moisture 2.2 Inhalation, ingestion, injection and absorption 2.3 Common sources of infection include food, water, sick people (colds and flu or winter vomiting virus etc. ), animals and poor housing 2.4 Direct - Person to person (touching, biting ,intercourse)Indirect - coughing, sneezing etc. 2.5compromised immune system,lack of good safety precautions - handwashing, proper cleaning of all surfaces,exposure to more infectious agents (e.g in a hospital setting),handling of body fluids.
1. Identify the differences between bacteria, viruses, fungi and parasites. Bacteria are micro-organisms that are too small to see with the naked eye. They exist in virtually all environments in the world, such as dirty water, organic materials such as fallen trees and dead animals and inside the bodies of virtually every living animal on earth. Some pathogenic bacteria can cause a host of very serious diseases, such as pneumonia, meningitis.
Botulism Julie L. Crabb 10/25/2013 Microbiology Madera Center Abstract This research paper is about botulism. Botulism is a very rare but serious disease that is caused by the bacterium called Clostridium botulinum. (Chaudry, 2011, para. 1-5) This type of bacterium occurs in the soil. There are three main types of botulism: 1.
Infection- This is an invasion by and multiplication of pathogenic, micro-organisms in a bodily part or tissue which could cause harm. Infections can be spread with ease, poor practice is the main reason for spread of infection. Examples of poor practices are not washing your hands regularly, hand washing should be done thoroughly with soap and water for at least 20 seconds, followed by hand-drying with a paper towel. Another example of poor practice is not covering your mouth when you cough or sneeze. You should always get vaccinated and always use safe methods of cooking and preparing food.
Foodborne Illness Short Answers 1. Giardia is a genus of anaerobic flagellated protozoan parasites of the phylum Retortamonada in the super group “Excavata” that colonize and reproduce in the small intestines of several vertebrates, causing giardiasis. Once a person or animal has been infected with Giardia, the parasite lives in the intestines and is passed in the feces (poop). Once outside the body, Giardia can sometimes survive for weeks or months. Giardia can be found within every region of the United States and around the world.
Pseudomonas aeruginosa: is the prime cause of life threatening burn infections. Gram- bacilli commonly found in the soil, water and an intestinal resident in 10% of normal people. Resistant to quats, soaps, dyes, drugs , drying , and temperature extremes. Frequent contaminant of hot
The majority of parasitic roundworm diseases are transmitted to humans through soil. In one handful of soil there can be thousands of nematodes, waiting to be transmitted via unwashed hand to mouth transport, or some can even enter the skin. Such nematodes affecting humans include Acaris lumbricoides, Brugia malayi and Wuchereria bancrofti. The latter two cause Elephantiasis. Cattadori et al experimented on the effects of co-infection of
A virus is a small piece of genetic material that has a protein coating to protect itself. A virus exists for the single purpose of reproducing. They invade and ‘hijack’ normal living cells and then multiply and produce viruses like themselves. The cells eventually die from this and this is what can make people ill. Many people get viruses from either swallowing or inhaling them, being bitten or sexual contact.