Protozoan diseases in animals

THEILERIASIS Theileriasis, also called east coast fever, is a tick born disease of cattle, sheep and goats caused by protozoan blood parasites, Theileria annulata, Theileria parva and Theileria ovis of the Genus Theileria, Family Theileriidae and Order Piroplasmida. Animals are infected through the bite of vector ticks List of four major protozoan diseases found in animals:- 1. Amoebiasis 2. Gardiasis 3. Anaplasmosis 4 species' gastro-intestinal tracts. They only cause clinical disease however when the animal's resistance is poor for whatever reason. Oocysts (the spore stage of the protozoan life cycle), which are the infective stage are taken in per mouth and the protozoa then develop further in the mucous membranes of the animal's gastro

Protozoan diseases of animals Zoology for IAS, IFoS and

Protozoan Diseases Found in Animals - Biology Discussio

Protozoa are one celled and the simplest form of animal life. Some protozoa cannot move themselves and must be transported by other means. Some move by making whip-like lashes or vibrating projections. A number of different kinds of protozoa prey upon animals and cause disease. EIGHT GOOD MANAGEMENT PRACTICE Besnoitia are protozoan parasite with classified 7 species, which only 2 of these species are important in livestock animals. Besnoitiosis is a emergent parasitic disease that caused by Besnoitia besnoiti in cattle, and Besnoitia caprae in goats. These parasites are in the family Sarcocystidae (Radostits et al., 2008), and they are an obligate intracellular apicomplexan protozoan parasites (Majzoub et al., 2010)

Clarification: Coccidiosis is an intestinal infection of animals caused by a group of protozoa called coccidia. The disease occasionally occurs in human beings where it is due to protozoan Isospora hominis or Isospora belli. The infection is asymptomatic, but may sometimes cause watery mucus containing diarrhoea. 10 Babesiosis is a protozoal disease transmitted from its animal reservoir to humans by tick bites or transfusion. Most cases are subclinical. Fever, anorexia, shaking chills, headaches, myalgia, vomiting, and abdominal pain can be seen in some patients. Asplenic, immunocompromised (HIV-infected patients in particular), and elderly patients may.

Protozoa and Animal Diseases - Biology Discussio

Transmission and epidemiology of zoonotic protozoal

Effective vaccines are available for many protozoal diseases of animals (see Tables 1-4). In contrast, no vaccine is widely available for any protozoal disease of humans, despite great need and considerable effort. Some of the more important protozoal diseases of humans for which vaccines could be invaluable include falciparum malaria, vivax. The paper reviews some protozoan parasites responsible for infertility in livestock with specific emphasis on neosporosis, sarcocystosis, toxoplasmosis, and trichomoniasis. It highlights the transmission, pathogenesis, clinical signs, diagnosis, prevention, control, and treatment of the individual parasite. It is concluded that these parasites are often overlooked during investigation into. Extra erythrocytic protozoan. Trypanosomasis It is also a vector born disease of dairy animals .Caused by Trypanosome evansi. Protozoan is present outside the RBC'S. Incidence of trypanosomiasis is high in rainy season due to large number of biting flies. Transmission: Trypanosoma evansi is transmitted by biting flies/Tabanus/Glossina flies Protozoan disease. 1. PROTOZOAN DISEASES AMEBIASIS: Etiology: 2 morphologically identical but genetically distinct sp: 1. E. dispar = more prevalent sp. 2. E. histolytica = pathogenic sp. = symptomatic disease ♦Can be killed by heating to 550 C ♦Resistant to low temperature and chlorine


Disorders Caused by Protozoa in the Digestive System of

  1. ants, equines, camels, pigs, dogs and cats in the USSR. It has 3 main sections: piroplasmid infections, trypanosomiases, and other protozoal diseases. Information is given on the taxonomy, morphology, and biology of the parasites and the epizootiology, symptoms, diagnosis, therapy and prophylaxis of the infections..
  2. Sarcocystosis is a disease caused by a group of parasitic protozoan species, Sarcocytis. fever, stiffness of the neck, headache, and sensitivity to light. This is a foreign animal disease State and Federal veterinarians should be notified immediately of any suspected cases of Rift Valley Fever. Pest. Screwwor
  3. Parasites may cause not only significant health problems in animals and humans, but also huge economic losses in the animal industry. Many important parasites are unicellular protozoa (also known as protists). This HATCH project will focus on studying the molecular and biochemical features of several protozoan pathogens including those within the phyla Apicomplexa (e.g., Cryptosporidium and.
  4. tions and by greater recognition of the disease-causing potential of various other intestinal protozoan parasites, such as Cryptosporidium parvum, Cyclospora cayetanensis, and microsporidia, as human pathogens. The first human cases of cryptosporidiosis were reported in 1976 (Meisel et al., 1976; Nime et al., 1976)
  5. Toxoplasma gondii (/ ˈ t ɒ k s oʊ p l æ z m ə ˈ ɡ ɒ n d i aɪ /) is an obligate intracellular parasitic protozoan eukaryote (specifically an apicomplexan) that causes the infectious disease toxoplasmosis. Found worldwide, T. gondii is capable of infecting virtually all warm-blooded animals,: 1 but felids, such as domestic cats, are the only known definitive hosts in which the parasite.

Protozoa: the life cycle. Microbe enters the body from the source: water, soil, food, from animals or other humans. Microbe, penetrating into the body of the new owner, begins to multiply ther, creating a lot of new parasites. Microbes lay eggs in the body. The most dangerous and common protozoal diseases Protozoa are one-celled organisms that can cause diseases ranging in severity from mild to deadly. These organisms can be classified as parasitic or free-living. Parasitic protozoa are found in organisms such as ticks, flies and mosquitoes. Free-living protozoa are found in water that is contaminated with fecal matter and other wastes

There are many protozoa, that cause various diseases in animals and humans, e.g. Plasmodium (malarial parasite), Trypanosoma (sleeping sickness), Trichomonas (trichomoniasis), etc. The protozoa have many stages in their life cycle. Some of the stages of the life cycle are infectious The protozoan can also be transmitted through human contact with infected animals or their feces. In the United States, outbreaks of cryptosporidiosis generally occur through contamination of the public water supply or contaminated water at water parks, swimming pools, and day-care centers Prevalence of blood protozoan diseases was highest in cattle among the three species of animals in all seasons (Table 3). Among the three selected age groups, animals aged between 1-2 years were found more likely to be infected with blood protozoan diseases (52%) than animals of more than 2 years of age (33.97%)

1. Z Tropenmed Parasitol. 1972 Jun;23(2):172-87. Immunological methods in diagnosis of protozoan diseases in man and domestic animals. Soltys MA, Woo PT A diarrheal disease + Person to person by soiled hands to mouth -Balantidiasis By Balantidium coli , the only ciliated protozoan that causes human infection -Crytosporidosis By Cryptosporidium parvum A diarrheal disease + Person to person + animal to person -Cyclosporiasis By Cyclospora cayetanensi protozoan - protozoan - Protozoans and disease: Parasitic protozoans have invaded and successfully established themselves in hosts from practically every animal phylum. The best-studied parasitic species are those of medical and agricultural relevance. The trypanosomes, for example, cause a number of important diseases in humans. African sleeping sickness is produced by two subspecies of. Diagnosis of the disease is based on identification of trophozo- ires in the intestinal tract. Treatment consists of adding 0.1% dimetridazole in the drinking water for 14 days. Control of the disease also requires proper husbandry and sanitation.7 The other important flagellate protozoa that affects mice, hamsters, and rats is Giardia

It also briefs pathogenesis, clinical signs in animals and man, prophylaxis in with reference to vaccination and current vaccines practiced. There are many books and publications available detailing the protozoan diseases however, this book will, I believe, be useful as a guide for the students for better understanding of the life cycle being. Some protozoa have been discovered to be harmful to animals and humans, taking on a parasitic form and infecting a host animal. Trichomoniasis is a disease caused by a type of anaerobic (capable of living without oxygen) protozoan called trichomonas. Normally inhabiting the large intestine, Trichomonas cause inflammation of the large bowel

Common Protozoans That Infect Domestic Animals Veterian Ke

Protozoan Diseases. Protozoan infections are parasitic diseases caused by organisms formerly classified in the Kingdom Protozoa. Protozoal disease, a disease caused by protozoans. These organisms may remain in the human host for their entire life cycle, but many carry out part of their reproductive cycle in insects or other hosts Synopsis : Diseases of Domestic Animals in Australia Protozoan and virus diseases written by Anonim, published by Anonim which was released on 10 July 1965. Download Diseases of Domestic Animals in Australia Protozoan and virus diseases Books now!Available in PDF, EPUB, Mobi Format There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites. Protozoa. Entamoeba histolytica is a protozoan. A microscope is necessary to view this parasite. Credit: CDC. Protozoa are microscopic, one-celled organisms that can be free-living or parasitic in nature. They are able to multiply.

Parasitic Protozoa - StudyBlueKingdom Protista - BIOLOGY4ISC

Protozoal disease, disease caused by protozoan s. These organisms may remain in the human host for their entire life cycle, but many carry out part of their reproductive cycle in insects or other hosts. For example, mosquitoes are vectors of plasmodium, the cause of malaria. See also entamoeba; Giardia lamblia; sleeping sickness Malaria :- Malaria is a mosquito borne infectious disease affecting humans and other animals caused by parasitic protozoans belonging to plasmodium type The disease is most commonly transmitted by an infected female anopheles mosquito The mosquito bite introduces the parasites from the mosquito's saliva into a person's blood09 10 PROTOZOAN PARASITES IN ANIMALS Abbreviations KINGDOM PHYLUM CLASS ORDER CODE Protista Sarcomastigophora Phytomastigophorea Dinoflagellida PHY:din Euglenida PHY:eug Zoomastigophorea Kinetoplastida ZOO:kin Proteromonadida ZOO:pro Retortamonadida ZOO:ret Diplomonadida ZOO:dip Pyrsonymphida ZOO:pyr Trichomonadida ZOO:tri Hypermastigida ZOO:hy Protozoan Diseases Life cycle. Protozoa have often complex life cycles that feature 2 or more stages and one or more hosts. Important protozoan stages The name 'proto-zoa' literally means 'first animals' and early classification systems grouped the protozoa as basal members of the animal kingdom. However, they were recognized as a discrete assemblage on the basis of their unicellularlity and were assigned to the taxon Protozoa (but still invariably figured as the trunk of the animal.

using artificial insemination, treating infected animals, or combining all three. Trichomoniasis A protozoan organism, Trichomonas fetus, causes tri-chomoniasis. It is also a venereal disease. Symptoms include occasional abortions and pyometra (pus in uterus) that impairs breeding efficiency. Pyometra develops after the infected cowÕs embryo dies Another protozoan intestinal illness is cryptosporidiosis, which is usually caused by Cryptosporidium parvum or C. hominis. (Figure 24.5. 1) These pathogens are commonly found in animals and can be spread in feces from mice, birds, and farm animals. Contaminated water and food are most commonly responsible for transmission Protozoan parasites can cause a wide range of different diseases. Some of the most commonly known include malaria, which is caused by a parasite from the Plasmodium genus, and amoebic dysentery, which is an intestinal inflammation caused by the amoeba Entamoeba histolytica Protozoan Diseases 1. Amoebiasis. This disease is caused by the sarcodina group of protozoa. They secrete enzymes that are then absorbed by the tissue of the host. Amoebiasis is transmitted through contact with infected feces. Food and water contaminated by feces is the most common route of transmission, however, oral contact with fecal matter.

3. Obtain prevalence data on Giardia for cattle of different ages. 4. Obtain data on the prevalence of zoonotic protozoa in wildlife found on or near cattle farms. 5. Obtain prevalence data on Microsporidia for cattle of different ages. 6. Develop improved methods for detection and identification of protozoan pathogens in food animals, 7 1. Z Tropenmed Parasitol. 1973 Sep;24(3):309-22. A review of studies on immunization against protozoan diseases of animals. Soltys MA. PMID Author (s) : Soulsby, E. J. L. Book : Helminths, arthropods and protozoa of domesticated animals. 1968 pp.xix + 824 pp. Abstract : This is the 6th edition of Mönnig's Veterinary helminthology and entomology which was to be a compilation of practical facts and was aimed at bringing about a realization of the importance of veterinary. Protozoa are single-celled organisms that are not visible to the naked eye but can be seen easily under a microscope. Protozoa are usually carried by and live in water. A fresh stool specimen of infested cat is required to identify the adult parasite or its cysts (called oocysts), because mostly these disease causing protozoal agents are

Protozoa and Animal Parasites Microbial Pathogens

Malaria is a protozoal disease transmitted by the bite of infected anopheles mosquitoes. Trypanosomiasis is a protozoal disease of domestic and wild animals worldwide, caused by Trypanosoma Evansi, the camel is considered major target infected species from trypanosomiasis [1, 2]. It can occur after an infection by disease such as the feline. Rabies (Mad dog disease) Rabies is a disease of dogs, foxes, wolves, hyaenas and in some places, it is a disease of bats which feed on blood. The disease is passed to other animals or to people if they are bitten by an animal with rabies. The germs which cause rabies live in the saliva of the sick (rabid) animal

Top 12 Diseases Caused By Protozoa Malaria

  1. 3 3Shares Cathy Lund, DVM, and Byron Blagburn, MS, PhD, Diplomate ACVM (Hon) The first article in this new column discussed canine protozoa. This second article addresses feline protozoa, including diagnosis, treatment, prevention, and control of infections. The mission of the Companion Animal Parasite Council (CAPC) is to foster animal and human health, while preserving the human-animal.
  2. Trichomoniasis is an extra-intestinal protozoa infection caused by Trichomonas vaginalis, a flagellate protozoan. The parasite infects the urinary tract of males and females. In females, it causes discharge, pain and itching. Trichomoniasis is an STI because its main mode of transmission is sexual contact
  3. the protozoan that causes Chagas disease. Many other animals can serve as carriers (or reservoirs), including cats, rabbits, raccoons, and rodents. Generally, dogs are the only animals that show signs of disease. How can my animal get Chagas disease? Animals can get Chagas disease by living or sleeping outside in an are
  4. Description of disease: Toxoplasmosis is a zoonotic infection of animals caused by the protozoan parasite Toxoplasma gondii.It has the capacity to infect all warm-blooded animals and, while infection does not cause clinical illness in the majority of animal species, in some it causes acut

Protozoal Disease in Cattle - The Cattle Sit

View This Abstract Online; Immunological methods in diagnosis of protozoan diseases in man and domestic animals. Z Tropenmed Parasitol. 1972; 23(2):172-87 (ISSN: 0044-359X). Soltys MA; Woo P The diseases caused by Protozoa are life-threatening and dangerous. Protozoa (pro-toe-ZO-uh) are one-celled organisms, like bacteria. But they are bigger than bacteria and contain a nucleus and other cell structures, making them more like plant and animal cells

Prion diseases are transmissible neurodegenerative conditions affecting human and a wide range of animal species. The pathogenesis of prion diseases is associated with the accumulation of aggregates of misfolded conformers of host-encoded cellular prion protein (PrPC). Animal prion diseases include scrapie of sheep and goats, bovine spongiform encephalopathy (BSE) or mad cow disease. PLAY. -Prevent or impair an animal's daily functioning and can be harmful to development. -Can be caused by the following: nutrient deficiencies or pathogens. -Result from under consumption of key nutrients. -Can affect the internal processes of animals. -Lower an animal's immune system and increase chances of illness human diseases than for animal diseases. As a result, vastly more funding is available for human disease research of all types in comparison with animal disease research. For example, the 2012 budget for the US National Institutes of Health (NIH, 2012), which exists to perform and support human medical research, was $25·38 billion. In. MCQs on Diseases Caused by Protozoa. Protozoans are unicellular eukaryotes with the absence of cell walls. These non-phototrophic entities are a diverse collection of species with a shared basic set of attributes. These entities have various intracellular organelles that carry out different functions

Animal parasitic diseases. Skin diseases are one of the most common health problems of guinea pigs. Of these skin diseases, sarcoptic mange is perhaps the most prevalent. Since the symptoms can be similar, many people think of mange as a bacterial infection. It is actually an infestation by parasites The disease is caused by a marine a-proteobacterium Roseovarius crassostreae, a member of the Roseobacter clade. Clam Diseases: QPX (Quahog Parasite Unknown) is a Protozoan parasite of hard clams, Mercenaria mercenaria. DNA analysis places the QPX in marine fungus-like protists (Labyrinthomorpha, Thraustochytriales). Organisms from this group. Protozoa use various mechanisms to establish persistent infections. In this Review, Barrett and colleagues describe protozoan parasite 'persister-like cells', and they explore their possible.

Blackhead disease (histomoniasis) is an important poultry disease that affects turkeys, chickens, and game birds such as partridges, pheasants, and quail. The disease is caused by the protozoa. Protozoan Infections, Animal: Disease Bioinformatics Research of Protozoan Infections, Animal has been linked to Protozoan Infections, Fish Diseases, Infective Disorder, Bird Diseases, Cattle Diseases. The study of Protozoan Infections, Animal has been mentioned in research publications which can be found using our bioinformatics tool below Protozoan Diseases D iseases caused by protozoans are common problems in aquarium fishes, and several have been observed in zebrafish. Ichthyophthirius multifiliis (the cause of Ich or white spot disease) and Piscinoodinium pillulare (the cause of freshwater velvet disease) are very common in warm water captive fishes This is a disease of the gastro-intestinal system and is caused by a type of microorganism called protozoa. The disease may infect many species of animals, and they may become carriers, however, the beaver is one animal that is frequently associated with this organism Protozoal Infections Protozoans are single-celled organisms. The three most common protozoal diseases in cats and humans are cryptosporidiosis, giardiasis, and toxoplasmosis. Cryptosporidiosis can cause diarrhea, vomiting, fever, abdominal cramps, and dehydration in both cats and people

Protozoan Parasites of Domestic Animals and of Man JAMA

  1. Trichomonas vaginalis is a sexually transmitted parabasalid protozoan that causes urogenital tract infections. Infection with T. vaginalis is one of the most common and curable sexually transmitted diseases with five million new infections reported each year in the United States alone and over 200 million worldwide
  2. List of animal diseases caused by protozoa. The following are some animal diseases caused by protozoa which include the following. 1. Malaria disease of Animal. 2. Trypanosomiasis of poultry. 3. Coccidiosis disease. 4. trichomoniasis
  3. Giardia are pear-shaped, one-celled organisms that infect the small intestine of dogs and cats. Similar to other protozoal infections, most clinical cases of giardia in young animals cause explosive, watery diarrhea, dehydration, weight loss and an unkempt appearance. Adult animals are capable of harboring the infection without showing clinical.
  4. Miscellaneous Systemic Protozoal Infections. Besides the systemic protozoal infections described in Chapters 72 to 78, other systemic protozoal infections of dogs and cats include sarcocystosis, amebiasis, rangeliosis, and theileriosis.These are uncommon causes of disease when compared with the other protozoal infections described in this book and are briefly reviewed here
  5. Vectors of Protozoan Parasites. Parasites which reside within the blood or internal organs of the host have logistical problems in terms of infecting a new host. In contrast to fecal-oral transmission, where infective stages are excreted into the environment, potential new hosts would not normally come into contact with the parasite
  6. California Animal Health and Food Safety Laboratory System University of California : Ichthyophthirius multifiliis (Ich or White Spot Disease) The largest protozoan parasite of fish. The trophozoite are up to 100 microns diameter, ciliated and contain an oval horseshoe shaped nucleus
  7. Global cost of animal diseases weighed by researchers. October 10, 2018. In developing countries, disease can kill as many as half of all livestock, reducing nutrition, trade, and prosperity. Helping address this challenge, research at WSU supports the new Global Burden of Animal Health Program. By Seth Truscott, College of Agricultural, Human.

Equine protozoal myeloencephalitis is caused by infection of the central nervous system with the protozoan parasites Sarcocystis neurona and, less commonly, Neospora hughesi.It is often a progressively debilitating disease and can affect any part of the nervous system, from the front of the cerebrum to the end of the spinal cord Common Protozoan and Rickettsial Diseases of Animals: A reference guide to students [Subramanian, Saravanan] on Amazon.com. *FREE* shipping on qualifying offers. Common Protozoan and Rickettsial Diseases of Animals: A reference guide to student

Parasite Protocols: Canine Protozoa Today's Veterinary

Giardia Protozoa. Giardia are flagellate protozoa that cause giardiasis.The parasites enter the body through food or water that has been contaminated by feces of infected people or animals. The protozoa attach to the lining of the host's small intestine, where they prevent the host from fully absorbing nutrients Toxoplasma gondii, N. caninum, Sarcocystis sp and T. evansi are single-celled zoonotic protozoan causing abortion in animals and/or man. The first three protozoan parasites are members of the Phylum Apicomplexa which characterized by a very unique organelle called an apical complex, while Trypanosoma sp is member of Phylum Kinetoplastida where its major distinguishing feature is the presence.

250+ TOP MCQs on Parasitic and Protozoan Diseases in

Causal Agent: Toxoplasma gondii is a protozoan parasite that infects most species of warm-blooded animals, including humans, and causes the disease toxoplasmosis.. Life Cycle: The only known definitive hosts for Toxoplasma gondii are members of family Felidae (domestic cats and their relatives). Unsporulated oocysts are shed in the cat's feces .Although oocysts are usually only shed for 1. It is estimated that pinworms infect more than 400,000,000 people throughout the world (10% of humans), and in many areas of the world (e.g., North America and Europe) it is the most common nematode parasite of humans.On a world-wide basis, however, Ascaris lumbricoides ranks #1 infecting more than 1,000,000,000 people (25% of humans) Many protozoa cause diseases in animals and humans. Some, like Plasmodium, which causes malaria, can be devastating to people worldwide. Others,. called the Protozoa common name for an unrelated group of protists that share at least some characteristics with the animal kingdom Protists - 1413, Ziser Lecture Notes, 2012.9 2 The Animal-like Protists: The Protozoa most are unicellular; a few are colonial protozoa share several animal-like traits: lack cell wall most are motil

Infectious Disease by Amanda BedardProtozoan infection - Wikipedia, the free encyclopedia

Protozoal Diseases - an overview ScienceDirect Topic

All protozoa rely on water, and they are most commonly observed in freshwater and marine habitats, although some are terrestrial in moist soils and others are exclusively found in the gastrointestinal tracts of animals. Diseases caused by protozoa that are transmitted by contaminated drinking water are considered waterborne diseases Protozoan infection medical illness natural treatment June 1 2017 by Ray Sahelian, M.D. . More than 70 species of protozoan and helminth parasites can reach humans by food and water. The majority of food and waterborne infections of parasitic origin are related to poverty, low sanitation, and old food habits Parasitic Protozoa of Farm Animals and Pets. by Monica Florin-Christensen, Leonhard Schnittger. February 2018. This book provides an in-depth yet concise overview of the most common and emerging protozoa that cause diseases in both farm animals and companion animals. As outlined in the concise introduction, pathogenic protozoans represent an. Numerous protozoans are found in reptiles; most are harmless commensals. The most serious protozoal pathogen of reptiles, especially snakes, is Entamoeba invadens. Clinical signs are anorexia, weight loss, vomiting, mucoidal or hemorrhagic diarrhea, and death. Entamoebiasis may be epidemic in large snake collections

Protozoa and the Illnesses They Cause - Verywell Healt

National list of notifiable diseases of terrestrial animals at April 2019. Multiple species diseases, infections and infestations. Bluetongue (clinical disease) Encephalitides (tick borne) Epizootic haemorrhagic disease (clinical disease) Infection with Australian bat lyssavirus. Infection with Bacillus anthracis (Anthrax pets, depending on the animal's risk of exposure to the The Link Between Animal Feces and Zoonotic Disease parasites.3 Other intestinal zoonotic infections in pets, such as salmonellosis, colibacillosis, and toxoplasmosis, require more advanced testing. Veterinary care is always recommended for ill animals, which also helps to protect human. Each different protozoan parasite can cause a different sickness or disease in our bodies. Some can cause serious diseases of the respiratory tract (air passages from the nose to lungs), and the central nervous system (brain, cranial nerves and spinal cord), while others live in our intestines and cause symptoms like diarrhea and are not deadly

Table 5insect | Definition, Facts, & Classification - Damage to

(This disease is often confused with another disease called 'Hexamita', because both these diseases are often seen simultaneously in the same fish. Hexamita is a protozoan disease that attacks the lower intestine. Discus and other large cichlids, especially Oscars, are especially prone to Hexamita.) Eye Problem Harmful Algal Bloom-Related Illness in Animals. On this page: Symptoms Exposure Prevention. Symptoms. Symptoms animals experience during illness depend on the type of toxin present in the water and how the animal is exposed (i.e., ingestion, skin contact, and inhalation) Trypanosomes are unicellular parasitic protozoa belonging to the Trypanosoma Genus of the Trypanosomatidae Class (Protozoa Kingdom). A large number of species and subspecies of trypanosomes have been described. Different species of trypanosomes infect a variety of different vertebrates, including animals and humans Most protist diseases in humans are caused by animal-like protists, or protozoa. Protozoa make us sick when they become human parasites. Three examples of parasitic protozoa are described below. Trypanosoma Protozoa. Members of the genus Trypanosoma are flagellate protozoa that cause sleeping sickness, which is common in Africa. They also cause. Animal to man: Humans and Some Animals: Ebola infection shows a sudden onset of the disease resulting initially in flu-like symptoms: fever, chills and malaise. As the disease progresses, it results in multi-system involvements indicated by the person experiencing lethargy, nausea, vomiting, diarrhoea and headache. Foot and Mouth Disease