1.1 identify the differences between bacteria, viruses, fungi and parasites Bacteria are living things which are neither plants or animals, but belong to a group by themselves. They are small, not more than one cell, but there are normally millions of them together. Virus is a small infectious agent that can replicate only inside the living cells of organisms. All viruses have genes made either from DNA or RNA, long molecules that carry genetic information. Fungi are Eukaryotes when compared to bacteria and fungi.
They take on various forms and can include yeast and moulds. Again, these can be both beneficial and pathogenic. Some of their common illnesses and infections include athletes foot, ring worm, thrush and mycoses. Parasites can be found in soil, water, air and animals and can be acquired by consumption and contact of a contaminated surface. They differ from bacteria by needing a living host to complete their life cycle, being host specific.
Bacterial infections are commonly treated with antibiotics. A virus is smaller and more difficult to kill than bacteria. It cannot be treated with antibiotics. A virus needs a living host to replicate and cannot do so outside of a host cell. A virus is a small piece of genetic material that has a protein coating to protect itself.
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.
Viruses can spread in many ways. Viruses in plants are often transmitted from plant ot plant by insects that feed on them. Viruses in animals can spread by blood sucking insects. Influenza viruses are spread by coughing and sneezing. Norovirus is transmitted faecal oral route and are passed from person to person contact, entering the body in food or water.
Bacteria is a single-celled microorganisms that cause diseases. Examples of bacteria are salmonella, campylobacteriosis, clostridium, and tularemia. Feline viral respiratory disease is a severe contagious illnesses of cats that spread fast in a multicat home. The fungi family comprises of mushrooms living in soil and biological material, most types of fungi are spread by airborne spores. “Rickettsia is a disease-causing parasites that are carried by fleas, ticks, and lice.
Sty is an infection involving a hair follicle on the eyelid, usually by staphylococci. It can become a chalazion an oil gland fully blocked. This can cause vision impairment. Symptoms of a sty include: Red swollen pimple (bump) Gritty, scratchy sensation Sensitivity to light (photophobia) Tearing of eye Tenderness of the eyelid Treatments for sty include: Warm compresses to eye Drain on its own Antibiotic creams Lanced or drain the infection If the sty infection is not treated it can lead to vision impairment or even loss. It can be spread to the other eye.
When they infect a host, tapeworms cause damage to different organs. Tapeworm Characteristics By definition, a parasite is defined as an organism living in, with, or on another organism in parasitism (Merriam-webster.com). Characteristics of a tapeworm are they are intestinal parasites, they lack a digestive system, have a scolex and different segments of the body. Intestinal parasite characteristics are that they are flattened like a tape measure; hence the name. A tapeworm cannot live on their own; they need to feed off a host ("Cestodes," 1996).
Once inside the body, the eggs usually lodge in the bowel, where they hatch into worms. In terms of human pathology, both adult and larval helminthes may cause pathology and disease in a person. An important difference between infection with parasitic helminthes and infection with bacterial, viral or protozoan parasites is that in most cases, the parasites do not increase in numbers within their hosts). That is, each larval helminth that infects the host will give way to only one adult parasite. Parasitic helminthes may have either simple or complicated lifecycles.
uses of infectionCauses and Spread of Infection 1.1 viruses....are a coated material that invade the cells apparatus for reproduction, Bacteria......are single celled organisms; some classify them as a separate {FOURTH} kingdom of the tree life Fungi.......are multi celled organisms that form a third kingdom of life along with the plant kingdom and the animal Parasites.....are plants or animals that derive from the metabolism of other plants or animals at the expense of the host and without providing some benefit to the host 1.2 common illnesses caused by Bacteria.....uti’s an tb Fungi.....Thrush, Athletes foot Viruses....Aids, Measles Parasites....malaria, tape worm 1.3 Infection is an invasion of cells that can cause harm. Colonisation is the invasion of cells that cause harm. 1.4 Systemic....is an infection that has gone into the blood stream. Localised infection....is in one place of your body. 1.5 poor hand hygiene can lead to the spread on infection.