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Bertiella (tapeworm)
''Bertiella'' is a genus of cestode tapeworm parasites that primarily infects nonhuman primates, rodents and Australian marsupials. Infections by ''Bertiella'' are known as bertielliasis. Occasional human infections have been documented by one of two species: ''Bertiella studeri'', or '' Bertiella mucronata''. ''Bertiella'' transmission is through oribatid mites that are present in the soil of problem areas, and can be easily prevented by avoiding contact with nonhuman primates, rodents and soil in these areas. Pathology Of 29 different ''Bertiella'' species, only two can infect humans: ''Bertiella studeri'' (majority of human cases), and ''Bertiella mucronata''. Infected patients are usually asymptomatic. Often individuals will have no fever and show no signs of internal organ damage or distress. Although symptoms are unique to each individual, an infected human may suffer from gastrointestinal irritation, diarrhea, abdominal pain, anorexia, weight loss, vomit and/or cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marsupial
Marsupials are any members of the mammalian infraclass Marsupialia. All extant marsupials are endemic to Australasia, Wallacea and the Americas. A distinctive characteristic common to most of these species is that the young are carried in a pouch. Marsupials include opossums, Tasmanian devils, kangaroos, koalas, wombats, wallabies, bandicoots, and the extinct thylacine. Marsupials represent the clade originating from the last common ancestor of extant metatherians, the group containing all mammals more closely related to marsupials than to placentals. They give birth to relatively undeveloped young that often reside in a pouch located on their mothers' abdomen for a certain amount of time. Close to 70% of the 334 extant species occur on the Australian continent (the mainland, Tasmania, New Guinea and nearby islands). The remaining 30% are found in the Americas—primarily in South America, thirteen in Central America, and one species, the Virginia opossum, in North America, n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praziquantel
Praziquantel (PZQ), sold under the brandname Biltricide among others, is a medication used to treat a number of types of helminthiasis, parasitic worm infections in mammals, birds, amphibians, reptiles, and fish. In humans specifically, it is used to treat schistosomiasis, clonorchiasis, opisthorchiasis, Taeniasis, tapeworm infections, cysticercosis, echinococcosis, paragonimiasis, fasciolopsiasis, and fasciolosis. It should not be used for worm infections of the eye. It is taken Oral administration, by mouth. Side effects in humans may include poor coordination, abdominal pain, vomiting, headache, and allergic reactions. While it may be used during pregnancy, it is not recommended for use during breastfeeding. Praziquantel is in the anthelmintic class of medications. It works partly by affecting the function of the worm's Sucker (zoology), sucker. Praziquantel was approved for medical use in the United States in 1982. It is on the WHO Model List of Essential Medicines, World ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albendazole
Albendazole (also known as albendazolum) is a broad-spectrum anthelmintic and antiprotozoal agent of the benzimidazole type. It is used for the treatment of a variety of intestinal parasite infections, including ascariasis, pinworm infection, hookworm infection, trichuriasis, strongyloidiasis, taeniasis, clonorchiasis, opisthorchiasis, cutaneous larva migrans, giardiasis, and gnathostomiasis, among other diseases. Common side effects include nausea, abdominal pain, and headache. Rare but potentially serious side effects include bone marrow suppression which usually improves on discontinuing the medication. Liver inflammation has been reported and those with prior liver problems are at greater risk. It is pregnancy category C in the United States and category D in Australia, meaning it may cause harm if taken by pregnant women. Albendazole was developed in 1975. It is on the World Health Organization's List of Essential Medicines. Medical uses Albendazole is an effective tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mites
Mites are small arachnids (eight-legged arthropods). Mites span two large orders of arachnids, the Acariformes and the Parasitiformes, which were historically grouped together in the subclass Acari, but genetic analysis does not show clear evidence of a close relationship. Most mites are tiny, less than in length, and have a simple, unsegmented body plan. The small size of most species makes them easily overlooked; some species live in water, many live in soil as decomposers, others live on plants, sometimes creating galls, while others again are predators or parasites. This last type includes the commercially destructive ''Varroa'' parasite of honey bees, as well as scabies mites of humans. Most species are harmless to humans, but a few are associated with allergies or may transmit diseases. The scientific discipline devoted to the study of mites is called acarology. Evolution and taxonomy The mites are not a defined taxon, but is used for two distinct groups of arachnids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oribatida
Oribatida (formerly Cryptostigmata), also known as oribatid mites, moss mites or beetle mites, are an order (biology), order of mites, in the "chewing Acariformes" clade Sarcoptiformes. They range in size from . There are currently 12,000 species that have been identified, but researchers estimate that there may be anywhere from 60,000 to 120,000 total species. Oribatid mites are by far the most prevalent of all arthropods in forest soils, and are essential for breaking down organic detritus and distributing fungi. Oribatid mites generally have low Metabolism, metabolic rates, slow development and low fecundity. Species are Semelparity and iteroparity, iteroparous with adults living a relatively long time; for example, estimates of development time from Egg (biology), egg to adult vary from several months to two years in temperate forest soils. Oribatid mites have six active instars: prelarva, larva, three nymph (biology), nymphal instars and the adult. All these stages after the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bertiella Mucronata
''Bertiella mucronata'' is a species of '' Bertiella'', a type of cestode tapeworms known to cause Bertielliasis. It belongs to the genus ''Bertiella'', family Anoplocephalidae. This is one of two species of ''Bertiella'' that can cause the condition in humans (the other being ''Bertiella studeri ''Bertiella studeri'' is a species of '' Bertiellia'', a type of cestodes (tapeworms). It is a parasite of primates which was first described in the rhesus macaque (''Macaca mulatta'') in 1940. The intermediate host are oribatid mites, which ing ...''). Epidemiology The genus Bertiella has 29 cestode species that infect primarily non-human primates. B. studeri and B. mucronata can cause the condition in humans. It usually occurs in children with close contact to non-human primates. This is known to occur in Africa, Asia, Oceania, South America and Cuba. Life cycle/reproduction The life cycle of Bertiella species has a two-host life cycle. An arthropod (such as a mite) serves a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bertiella Studeri
''Bertiella studeri'' is a species of '' Bertiellia'', a type of cestodes (tapeworms). It is a parasite of primates which was first described in the rhesus macaque (''Macaca mulatta'') in 1940. The intermediate host are oribatid mites, which ingest the eggs, and are themselves ingested by the vertebrate host. Oribatid mites infected with Bertiella transfer the developmental cysticercoid stage to a human host through tissue feeding. This is one of two species of ''Bertiella'' that cause Bertielliasis in humans (the other being '' Bertiella mucronata''). The majority of human cases occur in individuals who have some level of contact with non-humanprimates. Geographic distribution of cases demonstrate ''Bertiellia'' infection within countries from Asia, Africa, and the Americas. Morphology An adult ''B. studeri'' tapeworm measures 10–30 cm long, and is 1 cm wide. The adult develops in the small intestine of the primate host. Once the adult develops in the small inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bertielliasis
Bertielliasis is the infection of '' Bertiella'', a cestode tapeworm parasite that primarily infects nonhuman primates, rodents and Australian marsupials. Occasionally, human infections have been documented by one of two species: ''Bertiella studeri'', or '' Bertiella mucronata''. Of 29 different ''Bertiella'' species, only these two can infect humans. These infections present with symptoms similar to most tapeworm cases, and are frequently misdiagnosed. ''Bertiella'' transmission is through oribatid mites that are often present in the soil of problem areas, and can be easily prevented by avoiding contact with nonhuman primates, rodents and soil in these areas. Signs and symptoms Bertielliasis can be asymptomatic, or present with symptoms similar to many other tapeworms. These can include epigastric pain after meals accompanied by nausea, diarrhea, anorexia, loss of weight and, generally, a tender abdomen. Fever is not typically a symptom, but there are also reported cases o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for New Zealand, Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/richochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include mice, rats, squirrels, prairie dogs, porcupines, beavers, guinea pigs, and hamsters. Rabbits, hares, and pikas, whose i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyhelminthes
The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek language, Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") are a Phylum (biology), phylum of relatively simple bilaterian, Segmentation (biology), unsegmented, soft-bodied invertebrates. Unlike other bilaterians, they are acoelomates (having no coelom, body cavity), and have no specialized circulatory system, circulatory and respiratory system, respiratory organ (anatomy), organs, which restricts them to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. The digestive cavity has only one opening for both ingestion (intake of nutrients) and egestion (removal of undigested wastes); as a result, the food cannot be processed continuously. In traditional medicinal texts, Platyhelminthes are divided into Turbellaria, which are mostly non-parasitic animals such as planarians, and three entirely p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primate
Primates are a diverse order of mammals. They are divided into the strepsirrhines, which include the lemurs, galagos, and lorisids, and the haplorhines, which include the tarsiers and the simians (monkeys and apes, the latter including humans). Primates arose 85–55 million years ago first from small terrestrial mammals, which adapted to living in the trees of tropical forests: many primate characteristics represent adaptations to life in this challenging environment, including large brains, visual acuity, color vision, a shoulder girdle allowing a large degree of movement in the shoulder joint, and dextrous hands. Primates range in size from Madame Berthe's mouse lemur, which weighs , to the eastern gorilla, weighing over . There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and three in the 2020s. Primates have large bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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