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High Yield Parasitology 2
 
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Toxoplasma gondii Naeglaria fowleri Trypanosoma brucii Giardia lamblia Entamoeba histolytica Cryptosporidium parvum Schistosoma
Views: 1418 Jonathan Shayo
Sarcocystis - Video Learning - WizScience.com
 
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"Sarcocystis" is a genus of protozoa. Species in this genus are parasites, the majority infecting mammals, and some infecting reptiles and birds. The life-cycle of a typical member of this genus involves two host species, a definitive host and an intermediate host. Often the definitive host is a predator and the intermediate host is its prey. The parasite reproduces sexually in the gut of the definitive host, is passed with the feces and ingested by the intermediate host. There it eventually enters muscle tissue. When the intermediate host is eaten by the definitive host, the cycle is completed. The definitive host usually does not show any symptoms of infection, but the intermediate host does. There are about 130 recognised species in this genus. Revision of the taxonomy of the genus is ongoing, and it is possible that all the currently recognised species may in fact be a much smaller number of species that can infect multiple hosts. The name "Sarcocystis" is dervived from Greek: "sarx" = flesh and "kystis" = bladder. The organism was first recognised in a mouse by Miescher in 1843. His findings were not recognised as a protist initially and the literature referred to the structures he described as "Miescher's Tubules". Incidentally Miescher's son — Johann Friedrich Miescher — discovered DNA. Similar structures were found in pig muscle in 1865 but these remained unnamed until 1899 when the name "Sarcocystis meischeriana" was proposed to identify them. Initially it was unclear whether these organisms were fungi or protozoa. This uncertainty was resolved in 1967 when electron microscopic studies showed that these organism were protozoa, related to "Toxoplasma" and "Eimeria". The life cycle remained unknown until 1970 when bradyzoites from sarcocysts in bird muscles were inoculated into cultured mammalian cells and underwent development into sexual stages and oocysts. Transmission studies with the three morphotypes found in cattle then considered a single species - "Sarcoplasma fusiformis" - in dogs, cats and humans revealed that these were three different species now named "Sarcoplasma bovicanis", "Sarcoplasma bovifelis" and "Sarcoplasma bovihominis". Wiz Science™ is "the" learning channel for children and all ages. SUBSCRIBE TODAY Disclaimer: This video is for your information only. The author or publisher does not guarantee the accuracy of the content presented in this video. USE AT YOUR OWN RISK. Background Music: "The Place Inside" by Silent Partner (royalty-free) from YouTube Audio Library. This video uses material/images from https://en.wikipedia.org/wiki/Sarcocystis, which is released under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . This video is licensed under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . To reuse/adapt the content in your own work, you must comply with the license terms.
Views: 5090 Wiz Science™
Cat scat fever: Biology of the prevalent human parasite _Toxoplasma gondii_ .
 
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Kicking off this Summer's (2018) Undergraduate Research Seminars: Dr. Michael Behnke is currently an Assistant Professor in the Department of Pathobiological Sciences at the School of Veterinary Medicine, Louisiana State University, where he is studying the Apicomplexan parasite _Toxoplasma gondii_ . In his presentation to the Louisiana Biomedical Research Network Summer Undergraduate Program, Dr. Behnke discusses his current research and how he got to where he is today. More can be read about Dr. Behnke and his research at: http://facultypages.vetmed.lsu.edu/faculty/mbehnke This recording was made on July 5, 2018 at LSU Life Science Annex A101.
Views: 40 LBRNINBRE
Cryptosporidiosis | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: Cryptosporidiosis 00:01:04 1 Signs and symptoms 00:02:33 1.1 Intestinal cryptosporidiosis 00:03:34 1.2 Respiratory cryptosporidiosis 00:04:09 2 Cause 00:06:22 2.1 Transmission 00:08:25 2.2 Life cycle 00:10:13 3 Pathogenesis 00:11:39 4 Diagnosis 00:13:21 5 Prevention 00:17:20 6 Treatment 00:17:49 6.1 Immunocompetent 00:18:40 6.2 Immunocompromised 00:20:52 7 Epidemiology 00:21:39 8 History 00:21:55 9 Research 00:23:33 10 Other animals 00:24:05 11 Notable cases 00:24:14 11.1 Before 2000 00:25:56 11.2 2001–2009 00:30:15 11.3 2010 and later 00:32:19 12 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= Cryptosporidiosis, also known as crypto, is a parasitic disease caused by Cryptosporidium, a genus of protozoan parasites in the phylum Apicomplexa. It affects the distal small intestine and can affect the respiratory tract in both immunocompetent (i.e., individuals with a normal functioning immune system) and immunocompromised (e.g., persons with HIV/AIDS or autoimmune disorders) individuals, resulting in watery diarrhea with or without an unexplained cough. In immunosuppressed individuals, the symptoms are particularly severe and can be fatal. It is primarily spread through the fecal-oral route, often through contaminated water; recent evidence suggests that it can also be transmitted via fomites in respiratory secretions.Cryptosporidium is commonly isolated in HIV-positive patients presenting with diarrhea. Despite not being identified until 1976, it is one of the most common waterborne diseases and is found worldwide. The infection beings when a human consumes food or water containing cysts of the Cryptosporidium organism.
Views: 29 wikipedia tts
How to Pronounce oocysts - American English
 
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Learn how to say/pronounce oocysts in American English. Subscribe for more videos!
Views: 53 HowToPronounce8
Kinyoun 12.08.16
 
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December 2016 Kinyoun Lecture
Views: 126 NIAID
Apicomplexa | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Apicomplexa 00:02:43 1 General features 00:06:23 2 General features of the subgroups 00:06:58 2.1 Gregarines 00:08:05 2.2 Coccidians 00:10:01 2.3 Haemosporidia 00:11:19 3 Reproduction and lifecycle 00:13:56 4 Parasitology and genomics 00:16:00 4.1 Blood-borne genera 00:17:30 5 Evolution 00:20:02 5.1 Phylogenetic relations 00:20:44 6 Taxonomy 00:20:54 6.1 History 00:25:39 6.2 Jacques Euzéby (1988) 00:26:43 6.3 Roberts and Janovy (1996) 00:28:45 6.4 Perkins (2000) Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.7334456756464706 Voice name: en-US-Wavenet-D "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= The Apicomplexa (also called Apicomplexia) are a large phylum of parasitic alveolates. Most of them possess a unique form of organelle that comprises a type of plastid called an apicoplast, and an apical complex structure. The organelle is an adaptation that the apicomplexan applies in penetration of a host cell. The Apicomplexa are unicellular and spore-forming. All species are obligate endoparasites of animals, except Nephromyces, a symbiont in marine animals, originally classified as a chytrid fungus. Motile structures such as flagella or pseudopods are present only in certain gamete stages. The Apicomplexa are a diverse group that includes organisms such as the coccidia, gregarines, piroplasms, haemogregarines, and plasmodia. Diseases caused by Apicomplexa include: Babesiosis (Babesia) Malaria (Plasmodium) Cryptosporidiosis (Cryptosporidium parvum) Cyclosporiasis (Cyclospora cayetanensis) Cystoisosporiasis (Cystoisospora belli (formerly known as "Isospora Belli")) Toxoplasmosis (Toxoplasma gondii)The name of the taxon Apicomplexa derives from two Latin words—apex (top) and complexus (infolds)—and refers to a set of organelles in the sporozoite. The Apicomplexa comprise the bulk of what used to be called the Sporozoa, a group of parasitic protozoans, in general without flagella, cilia, or pseudopods. Most of the Apicomplexa are motile, however, by use of a gliding mechanism that uses adhesions and small static myosin motors. The other main lines were the Ascetosporea (now in Rhizaria), the Myxozoa (now known to be highly derived cnidarian animals), and the Microsporidia (now known to be derived from fungi). Sometimes, the name Sporozoa is taken as a synonym for the Apicomplexa, or occasionally as a subset.
Views: 53 wikipedia tts
Foodborne illness | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: Foodborne illness 00:01:13 1 Causes 00:02:03 1.1 Bacteria 00:04:34 1.1.1 Enterotoxins 00:06:19 1.1.2 Emerging foodborne pathogens 00:06:36 1.1.3 Preventing bacterial food poisoning 00:09:01 1.2 Mycotoxins and alimentary mycotoxicoses 00:13:54 1.3 Viruses 00:15:02 1.4 Parasites 00:16:03 1.5 Natural toxins 00:17:32 1.6 Other pathogenic agents 00:17:48 1.7 "Ptomaine poisoning" 00:19:28 2 Mechanism 00:19:37 2.1 Incubation period 00:20:43 2.2 Infectious dose 00:21:03 3 Epidemiology 00:21:32 3.1 Infants 00:22:00 3.2 United States 00:22:42 3.3 France 00:23:28 3.4 Australia 00:26:50 3.5 Comparison between countries 00:27:00 3.6 Outbreaks 00:28:17 4 Society and culture 00:28:26 4.1 United Kingdom 00:30:25 4.2 United States 00:31:54 4.3 Organizations 00:32:52 4.4 International Food Safety Authorities Network (INFOSAN) 00:34:50 4.5 Prioritisation of food-borne pathogens 00:35:32 4.6 Regulatory steps Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= Foodborne illness (also foodborne disease and colloquially referred to as food poisoning) is any illness resulting from the food spoilage of contaminated food, pathogenic bacteria, viruses, or parasites that contaminate food, as well as toxins such as poisonous mushrooms and various species of beans that have not been boiled for at least 10 minutes. Symptoms vary depending on the cause, and are described below in this article. A few broad generalizations can be made, e.g.: The incubation period ranges from hours to days, depending on the cause and on how much was consumed. The incubation period tends to cause sufferers to not associate the symptoms with the item consumed, and so to cause sufferers to attribute the symptoms to gastroenteritis for example. Symptoms often include vomiting, fever, and aches, and may include diarrhea. Bouts of vomiting can be repeated with an extended delay in between, because even if infected food was eliminated from the stomach in the first bout, microbes (if applicable) can pass through the stomach into the intestine and begin to multiply. Some types of microbes stay in the intestine, some produce a toxin that is absorbed into the bloodstream, and some can directly invade deeper body tissues.
Views: 9 wikipedia tts
Food poisoning | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: Food poisoning 00:01:13 1 Causes 00:02:03 1.1 Bacteria 00:04:34 1.1.1 Enterotoxins 00:06:19 1.1.2 Emerging foodborne pathogens 00:06:36 1.1.3 Preventing bacterial food poisoning 00:09:01 1.2 Mycotoxins and alimentary mycotoxicoses 00:13:54 1.3 Viruses 00:15:02 1.4 Parasites 00:16:03 1.5 Natural toxins 00:17:32 1.6 Other pathogenic agents 00:17:48 1.7 "Ptomaine poisoning" 00:19:28 2 Mechanism 00:19:37 2.1 Incubation period 00:20:43 2.2 Infectious dose 00:21:03 3 Epidemiology 00:21:32 3.1 Infants 00:22:00 3.2 United States 00:22:42 3.3 France 00:23:28 3.4 Australia 00:26:50 3.5 Comparison between countries 00:27:00 3.6 Outbreaks 00:28:17 4 Society and culture 00:28:26 4.1 United Kingdom 00:30:25 4.2 United States 00:31:54 4.3 Organizations 00:32:52 4.4 International Food Safety Authorities Network (INFOSAN) 00:34:50 4.5 Prioritisation of food-borne pathogens 00:35:32 4.6 Regulatory steps Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= Foodborne illness (also foodborne disease and colloquially referred to as food poisoning) is any illness resulting from the food spoilage of contaminated food, pathogenic bacteria, viruses, or parasites that contaminate food, as well as toxins such as poisonous mushrooms and various species of beans that have not been boiled for at least 10 minutes. Symptoms vary depending on the cause, and are described below in this article. A few broad generalizations can be made, e.g.: The incubation period ranges from hours to days, depending on the cause and on how much was consumed. The incubation period tends to cause sufferers to not associate the symptoms with the item consumed, and so to cause sufferers to attribute the symptoms to gastroenteritis for example. Symptoms often include vomiting, fever, and aches, and may include diarrhea. Bouts of vomiting can be repeated with an extended delay in between, because even if infected food was eliminated from the stomach in the first bout, microbes (if applicable) can pass through the stomach into the intestine and begin to multiply. Some types of microbes stay in the intestine, some produce a toxin that is absorbed into the bloodstream, and some can directly invade deeper body tissues.
Views: 23 wikipedia tts