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Toxoplasmosis sketchy
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Taxoplasma gondii is a single-celled protozoan parasite. The microbe was discovered in a North African rodent, Ctenodactylus gondii, in 1908 by Charles Nicolle, Louis Manceaux, and Alfonso Splendor. The organism was named Toxoplasma because of its crescent shape (the Greek word "toxon", meaning an arc or bow and the Greek word “plasma”, meaning form) and gondii after its rodent host. This parasite can be found worldwide in artic, desert, and tropical climates. It has been noted that approximately one third of the human population is infected with Taxoplasma gondii as it is a very resilient and adaptive microbe. The organism does not have any appendages to aid in motility (such as flagella, cilia, or pili) so it uses it secretory organelles to facilitate a gliding type of movement. The apical, more pointed end of the cell, houses these secretory organelles. The conoid end is responsible the entrance into a host’s cell membrane. T. gondii is an exclusively parasitic organism that can only grow inside of another cell therefore relying on warm-blooded hosts. Felines, the preferred host of the microbe, are categorized as definitive hosts. The parasite can only sexually reproduce within the gut of a cat. However, T. gondii can infect, be transmitted by, and asexually reproduce in essentially any warm-blooded animal or human. These secondary warm-blooded hosts are considered to be intermediate hosts. Additionally, T. gondii has been found in invertebrates such as filtrating mussels and oysters. Taxoplasma gondii has a complex life cycle. The life cycle begins with a domestic or wild cat that has been infected by infected prey such as a rodent. T. gondii produces extremely tough and resistant oocyts in the intestinal lining of the ca... ... middle of paper ... ...t least a day to sporulate and become infectious after they are shed, so disposing of cat litter greatly reduces the chances of infectious oocysts being present in litter. Wash hands after changing cat litter. 2. Wear gloves when gardening or when in contact with soil or sand, as infectious oocysts from cat feces can spread and survive in the environment for months to years. 3. Avoid drinking untreated water. 4. Cover outdoor sandboxes when not being used. Medical precautions for pregnant or immunocomprimised persons: 1. Do not change or handle cat litter boxes. If absolutely necessary, wear gloves and wash hands with hot, soapy water immediately afterwards. 2. Keep cats indoors, and only feed them commercial canned or dry food, or well-cooked table food. 3. Do not adopt or handle stray cats, particularly kittens. 4. Do not get a new cat while pregnant. 5.
This final microbe is far less dangerous and easier to comprehend than the formerly mentioned ones. Histoplasma Capsulatum, often called histoplasmosis, is caused by a fungus called Histoplasma (1). This fungus thrives within earthy environments with lots of soil filled with bird and bat droppings (1). It is found mainly in the United States, specifically within the central and eastern states, such as around the Ohio and Mississippi river valleys (1). The fungus can also be found within central and South America, Africa, Asia, Australia, and small parts of Europe (1). While most people do not get sick, those who do become infected when breathing in the microscopic fungal spores in the air (1). Symptoms
Mycoplasma haemofelis is the most prevalent erythroparasite in felines (Reagan, 30). This tiny blood parasite is the cause of feline hemotropic mycoplasmosis (FHM), previously known as feline infectious anemia (FIA) (“New: IDEXX…”). Formerly known as Haemobartonella felis or Eperythrozoon felis, these hemoplasma were considered rickettsial organisms until the late 1990’s following 16S ribosomal RNA gene sequence analysis which revealed a closer pylogenetical relationship to the genus Mycoplasma (“Mycoplasma Haemofelis,” Allison).
Treponema pallidum is a Gram-negative bacterium that has a spiral shape (1). They are about 6 to 20um in length and 18-20um in diameter (1). Treponema pallidum can only survive within a host which makes them obligate internal parasites, meaning that outside a host this organism will die due to the absence of nutrients, exposure to oxygen and heat. Also since this organism can’t be grown on a culture medium, animal models are used to study T. pallidum (1). Treponema pallidum bacteria consist of an inner and outer membrane with a thin peptidoglycan cell wall lacking liposaccharides (1). They have a distinctive corkscrew motility with the aid of 6 endoflagellas (2). The specific classifications of Treponema pallidum are the following: Scientific name- Treponema pallidum, Common name- Syphilis. Treponema causes syphilis, yaws, and spinta. Borrelia causes Lyme disease and relapsing fever and Leptospira causing leptospirosis (5). What makes this microorganism special to the human population is that it causes infection to its host by entering the body through microscopic skin or mucous abrasions via direct personal contact with the lesions (sexual or kissing), blood transfusions, accidental bacterial inoculation, and transplacental passage (2). According to the CDC website there are 55,400 people diagnosed with Syphilis every year and 322 reported cases of congenital Syphilis in 2012 (6).
Disease and parasitism play a pervasive role in all life. Many of these diseases start with microparasites, which are characterized by their ability to reproduce directly within an individual host. They are also characterized by their small size, short duration of infection, and the production of an immune response in infected and recovered individuals. Microparasites which damage hosts in the course of their association are recognized as pathogens. The level of the interaction and the extent of the resultant damage depends on both the virulence of the pathogen, as well as the host defenses. If the pathogen can overcome the host defenses, the host will be damaged and may not survive. If on the other hand the host defenses overcome the pathogen, the microparasite may fail to establish itself within the host and die.
This paper tells about different methods as to which parasites enter the body. Each parasite is unique as to what problems they cause or diseases they carry. Some of these parasites can prove fatal unless treated, and if they are not treated carefully, they could still complicate an individual’s health. This paper also includes the places these parasites thrive and as to how to treat these parasites. Although most of these parasites are treatable, the treatment required is completely dependent upon what stage the parasites have progressed to. Some parasites are accompanied by a disease and are therefore not the primary health risk of getting infected. Nevertheless, if left untreated all of these parasites can host the body for large periods of time, which can lead to prolonged illness. Most of these parasites are found in third world countries, but under the right conditions can be found in the United States of America.
Toxoplasmosis is a disease caused by Toxoplasma gondii, a single celled parasitic organism, one of the world's most common parasites, infecting most warm- blooded species. The only known hosts for the protist are members of family Felidae (domestic cats and their relatives).
Some are found specifically in the human body and some are found in the environment and will eventually enter the human body. Coccidioides immitis and Coccidioides posadasii are two pathogens that are found in the environment and will eventually enter the human body. Both pathogens are found in the southern United States, Mexico, and Central and South America (Fungal Infections, 8). Coccidioides immitis is found in the lower, arid zone of the United States; specifically, the southwestern states like Arizona, southern California-primarily the San Joaquin Valley, and New Mexico, as well as in Central and South America (Lewis et al, 1). Coccidioides immitis is also found in the soil and is classified as an ascomycete (Lewis et al, 2). Coccidioides posadasii is found in the more central southern United States; specifically, Texas, Arizona, and New Mexico, as well as Mexico, Central America, and South America (Lewis et al, 2). Coccidioides posadasii is also found in soil and classified as an ascomycete (Lewis et al, 2). Once the pathogens have grown to a point of maturity, they can infect the host. Both Coccidioides immitis and Coccidioides posadasii infect humans primarily; these pathogens will also infect other mammals such as cattle and dogs (Kellner et al, 111). Infection of the host can cause many issues in large cattle populations as the cattle are eating and breathing the same things; there is really no way to stop the
...e in contact. When it comes to disinfecting, however, things like alcohol cannot be used. Bleach or potassium peroxymonosulfate can be used instead when disinfecting. (VetInfo, 2012) Although bleach is an option for the cat’s belongings, it is smartest to just throw out and purchase entirely new stuff for your cat. (petMD, n.d.)
Enterococci are normally found inhabiting the large bowls of humans but are also a part of the intestinal micro flora in mammals and birds. Enterococci are also found in soil, plants, and water. Normally, you do not find E. faecalis in water but there are other species of Enterococci that have been found in water due to contamination. Often from feces. E. faecalis is considered an assorted species because it mingles with many different organisms and has an effect on the environment. Some of the ways that E. faecalis can be transmitted in the environment are by various insects and animals. House flies are a good example of how the bacterium is transmitted because where they live there are live microbial communities present. Normally they are found around...
The two types of intestinal parasites are helminthes and protozoa. Helminthes are worms with multiple cells. The most common helminthes are tapeworms, pinworms and ringworms. These intestinal parasites may also be transmitted by sexual intercourse and other forms of sexual play. In the helminthes adult form they cannot multiply in the human body. Protozoa have only one cell which multiplies inside the human body which allows for serious infections. Intestinal parasites are usually transmitted when someone comes in contact with infected faeces which are present in contaminated soil, food, or water which is caused by poor hygiene.
Infections from Toxoplasma gondii are found in many human beings and animals used as a food source. All mammals and birds that are eaten by humans can function as intermediate hosts for T. gondii and therefore could potentially be the area of infection for humans. Many of the major sources of foodborne transmission to humans come from undercooked meat, mainly pork, wild game, and lamb containing tissue cysts. Other sources of T. gondii come from soil that has been contaminated with cat feces on raw fruits, vegetables and in water that contains the oocysts. There has been an increased interest from consumers
one in which the host animal can live for a long enough time for the parasite to
There are the many differences and similarities between the most popular household pets, dogs and cats. These pets really do make a wonderful addition to the family; but, before you decide on which pet to bring home think about the different attention, grooming care, and bathroom usage for each of these pets, to make sure you are able to provide proper care for your pet. Having a pet is a lot of hard work, but in the long run it’s very
When I bought Katie to my apartment, she was so frightened. She meowed all night. I called Judy to say that I didn't think I could care for her, but Judy encouraged me to give the cat time to adjust, because she was in a new surrounding. I started feeding my new cat fresh Purina One Special Care dry food and Friskies moist food along with a fresh bowl of water each morning and evening. I also bougth a cat brush to stroke her long luxurious black and white hair, plus I took her to the Vet for an annual booster and rabie shot so I could give the records of the shots to my Manager.
T. pallidum is highly sensitive to oxygen and has a decreased ability to survive when not in human body temperature environments 1. The mode of transmission is through sexual contact or vertical transmission from the mother to the fetus. T. pallidum lacks the lipopolysaccharide which is the endotoxin normally present in gram negative bacteria1. The bacterium does produce many lipoproteins which are thought to prompt the inflammatory mediators through the recognition of toll-like receptors1. T. pallidum has a virulence factor of being highly motile due to its ability to propel itself forward by rotating on a longitudinal axis1. The spirochetes easily penetrate the skin or mucosal membranes and spread throughout the lymph nodes and then the blood circulation, affecting many parts in the body1.