There are several types of parasites such as Ectoparasite- which is a parasite that lives on the host’s surface, examples will be hair and body lice and mites. Endoparasites – One that lives inside the host, for example heartworm, tapeworm and flatworms. Epiparasite- This one feeds on another parasite. For example, fleas and ticks. 1.2 Identify common illness and infections caused by bacteria, viruses, fungi and parasites.
The causative agent of the Bubonic Plague is a gram-negative coccobacilli shaped bacteria, Yersinia pestis. Yersinia pestis belongs to the family of enterobacteria and is a facultative anaerobe. Metabolism of Yersinia pestis is fermentative, and produces a thick capsule, which prevents the ability of white blood cells to ward of the infection of Yersinia pestis. There are three known diseases that are caused by Yersinia pestis; Bubonic, Septemic, and Pneumonic Plague. Bubonic plague is an infectious disease that is transmitted from small rodents and their fleas to
First, it was from the bacterium known as Yersinia pestis. (Wade, 2010) There are three different forms of the plague. The first is the Bubonic Plague, which is the most common form, known for its buboes, which are painfully swollen lymph nodes in the armpit, groin or neck. Septicemic plague, which spreads in the bloodstream, comes either via fleas or from contact with plague-infected body matter. Lastly there is the pneumonic plague, the most infectious type, is an advanced stage of bubonic plague when the disease starts being passed directly, person to person, through airborne droplets coughed from the lungs.
Author: Jake Date: 12/09/2010 Introduction This essay includes my findings from research on the disease, and explains the signs, symptoms, causes, cures and prevention of the pathogen Cholera. The Bacterium Cholera is a severe bacterial infection caused by the bacterium “Vibrio cholerae”, the most common symptoms of the infection are diarrhoea ,vomiting and muscle cramps, this can lead to rapid dehydration and sometimes death. You can transmit Cholera by water that is contaminated with infected faeces; and also transmit it due to poor food hygiene1. Cholera kills an estimated 120,000 people a year2. If the bacteria enter the small intestine, they use their flagella to propel themselves through the lining of the intestinal wall, they produce a toxic protein.
Some of the most deadly diseases and devastating epidemics in human history have been caused by bacteria. Cholera Diphtheria Dysentery Plague Pneumonia Tuberculosis Typhoid Typhus VIRUSES A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to bacteria and archaea. The average virus is about one one-hundredth the size of the average bacterium. Most viruses are too small to be seen directly with an optical microscope.
1.2 Identify common illnesses and infections caused by bacteria, viruses, fungi and parasites The most common illnesses and infections that occur due to bacteria, viruses, fungi and parasites are Dioreah, Vomiting, Influenza, Nail infections, Tick bites, Colds, Skin Conditions, Digestive Problems ( Parasites - Worms ) and in some cases, Death. 1.3 Describe what is meant by “Infection” and “Colonisation” As defined by : www.freedictionary.com INFECTION Invasion by and multiplication of pathogenic microorganisms in a bodily part or tissue, which may produce subsequent tissue injury and progress to overt disease through a variety of cellular or toxic mechanisms. This means that Infection is the process of infecting or being infected. COLONISATION A mass of microorganisms in a culture that originates from a single cell. This means that when either a Virus, Bacteria, Fungi or parasites in the single form, gather and join to make one mass of either Virus, Bacteria, Fungi or parasites.
Andrew Hodgkiss Unit 22 Information sourced from various sites on the Internet. Bacteria, viruses, fungi, and parasites: The first bacteria a usual size is but a few micrometers in length shapes ranging from spheres to rods and spirals. Bacteria are present in most of the Earths habitats such as soil, water, acidic hot springs and radioactive waste also, found in/on animals and plants. Some bacteria are beneficial to human existence others can be fatal in developed countries antibiotics are used to treat bacterial infections. Viruses are small infectious agents that replicate only inside the living cells of other organisms, Viruses infect all types of life forms from animals, plants and bacteria.
5. List at least three types of bacteria whose names reflect their shapes and arrangements, and state the meaning of each name. Streptococcus (Coccus Shape) this is a spherical bacteria that causes Strep Throat. Lactobacillus (Bacillus Shape) this is a bacteria in the form of a rod that is usually in probiotics Spirillum Pulli (Spirillum Shape) this is a spiral bacteria in rat bite fever Exercise 3: Gram stain 1. What is the function of the iodine solution in the Gram stain?
The skin rash evolves uniformly in all areas. Patients are contagious until the scabs fall off. The differential diagnosis includes monkeypox, measles (early stages), secondary syphilis and chickenpox. One very important part of the diagnosis is differentiating smallpox from chickenpox. This can be done by noting that chickenpox appears mostly on the abdomen, while smallpox appears mostly on the
| | trypanosomiasis and leishmaniasis. | | cryptosporidiosis and malaria | 3. value: 6 points Diseases transmitted by vectors include | balantidiasis. | | amebiasis and trichomoniasis. | | amebic meningoencephalitis.