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Makram Nasri Kaiser
Makram Nasri Kaiser (1930–1996) was a medical and veterinary acarologist who was the world's leading authority on ticks of the genus '' Hyalomma''. Education Born in Aswan on April 6, 1930, Kaiser received his primary and secondary schooling in Egypt. He took his undergraduate education at Cairo University, completing a Bachelor of Science degree in Agriculture in 1949. In 1962, he earned a Master of Science degree at Ain Shams University, with his thesis on hosts and ecological relationships of Egyptian ''Hyalomma'' ticks. He completed his Doctor of Philosophy degree in 1965 at Emory University in Atlanta, Georgia, with his research conducted at the United States Centers for Disease Control and Prevention (CDC). His dissertation resulted in the publication of five scientific papers describing a new subgenus and species of ''Argas'', a rearing method for argasids, vector relationships and transmission of Quaranfil and Nyamanini viruses, and the inability of the fowl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aswan
Aswan (, also ; ar, أسوان, ʾAswān ; cop, Ⲥⲟⲩⲁⲛ ) is a city in Southern Egypt, and is the capital of the Aswan Governorate. Aswan is a busy market and tourist centre located just north of the Aswan Dam on the east bank of the Nile at the first cataract. The modern city has expanded and includes the formerly separate community on the island of Elephantine. Aswan includes five monuments within the UNESCO World Heritage Site of the Nubian Monuments from Abu Simbel to Philae (despite Aswan being neither Nubian, nor between Abu Simbel and Philae); these are the Old and Middle Kingdom tombs of Qubbet el-Hawa, the town of Elephantine, the stone quarries and Unfinished Obelisk, the Monastery of St. Simeon and the Fatimid Cemetery. The city's Nubian Museum is an important archaeological center, containing finds from the International Campaign to Save the Monuments of Nubia prior to the Aswan Dam's flooding of all of Lower Nubia. The city is part of the UNESCO Cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master Of Science
A Master of Science ( la, Magisterii Scientiae; abbreviated MS, M.S., MSc, M.Sc., SM, S.M., ScM or Sc.M.) is a master's degree in the field of science awarded by universities in many countries or a person holding such a degree. In contrast to the Master of Arts degree, the Master of Science degree is typically granted for studies in sciences, engineering and medicine and is usually for programs that are more focused on scientific and mathematical subjects; however, different universities have different conventions and may also offer the degree for fields typically considered within the humanities and social sciences. While it ultimately depends upon the specific program, earning a Master of Science degree typically includes writing a thesis. The Master of Science degree was first introduced at the University of Michigan in 1858. One of the first recipients of the degree was De Volson Wood, who was conferred a Master of Science degree at the University of Michigan in 1859. Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viral Encephalitis
Viral encephalitis is inflammation of the brain parenchyma, called encephalitis, by a virus. The different forms of viral encephalitis are called viral encephalitides. It is the most common type of encephalitis and often occurs with viral meningitis. Encephalitic viruses first cause infection and replicate outside of the central nervous system (CNS), most reaching the CNS through the circulatory system and a minority from nerve endings toward the CNS. Once in the brain, the virus and the host's inflammatory response disrupt neural function, leading to illness and complications, many of which frequently are neurological in nature, such as impaired motor skills and altered behavior. Viral encephalitis can be diagnosed based on the individual's symptoms, personal history, such as travel history, and different clinical tests such as histology, medical imaging, and lumbar punctures. A differential diagnosis can also be done to rule out other causes of the encephalitis. Many encephalitic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epidemiology
Epidemiology is the study and analysis of the distribution (who, when, and where), patterns and determinants of health and disease conditions in a defined population. It is a cornerstone of public health, and shapes policy decisions and evidence-based practice by identifying risk factors for disease and targets for preventive healthcare. Epidemiologists help with study design, collection, and statistical analysis of data, amend interpretation and dissemination of results (including peer review and occasional systematic review). Epidemiology has helped develop methodology used in clinical research, public health studies, and, to a lesser extent, basic research in the biological sciences. Major areas of epidemiological study include disease causation, transmission, outbreak investigation, disease surveillance, environmental epidemiology, forensic epidemiology, occupational epidemiology, screening, biomonitoring, and comparisons of treatment effects such as in clinical trials. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argas Persicus
''Argas persicus'', also known as fowl tick or poultry tick, is a small soft-bodied tick that is found primarily on domestic fowl such as chickens, ducks, and geese. It was first recorded by Lorenz Oken in 1818 in Mianeh, Persia, and named ''Rhynochoprion persicum''. ''Argas persicus'' appears yellowish-brown when starved and slatey-blue when engorged. They are found on an animal host, in cracks and crevices of buildings or in nests. They are also carriers of the spirochete bacteria ''Borrelia anserina'' which causes avian spirochetosis, one of the most severe diseases affecting the poultry industry. In addition to domestic fowl, ''A. persicus'' may also feed on humans, although an immunity has been acquired by some individuals. Distribution The fowl tick is distributed worldwide but does tend to prefer a warmer climate. The lower United States especially sees a large distribution of this soft bodied tick due to the warm climate. Life Cycle Argasid (soft) ticks have a m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nyavirus
''Nyavirus'' is a genus of negative-strand RNA viruses in the family ''Nyamiviridae''. Ticks and birds serve as natural hosts. There are four species in this genus. History ''Nyamanini nyavirus'' (NYMV) and ''Midway nyavirus (''MDWV) were first isolated in 1957 and 1966 respectively. NYMV has been isolated from cattle egrets (species ''Bubulcus ibis'') and ticks (species '' Argas walkerae'') in Egypt, India, Nigeria, South Africa, and Thailand. MDWV has been isolated from tick of the genus ''Ornithodoros'' collected in Midway, Kure and Manana islands and northern Honshu, Japan. Antibodies to this virus have been found in the black-tailed gulls (species '' Larus crassirostris'') and black-crowned night herons (species ''Nycticorax nycticorax''). Structure Nyaviruses are enveloped, with spherical geometries. The diameter is around 100 to 130 nm. Genomes are linear, nonsegmented, and around 11.6 kbp in total length. The genome codes for 6 proteins. Their genomes contain si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthomyxoviridae
''Orthomyxoviridae'' (from Greek language, Greek ὀρθός, ''orthós'' 'straight' + μύξα, ''mýxa'' 'mucus') is a family of negative-sense single-stranded RNA virus, negative-sense RNA viruses. It includes seven genus, genera: ''Influenza A virus, Alphainfluenzavirus'', ''Influenza B virus, Betainfluenzavirus'', ''Influenza C virus, Gammainfluenzavirus'', ''Influenza D virus, Deltainfluenzavirus'', ''Isavirus'', ''Thogotovirus'', and ''Quaranjavirus''. The first four genera contain viruses that cause influenza in birds (see also avian influenza) and mammals, including humans. Isaviruses infect salmon; the thogotoviruses are arboviruses, infecting vertebrates and invertebrates (such as ticks and mosquitoes). The Quaranjaviruses are also arboviruses, infecting vertebrates (birds) and invertebrates (arthropods). The four genera of Influenza virus that infect vertebrates, which are identified by antigenic differences in their nucleoprotein and matrix protein, are as follows: * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disease Transmission
In medicine, public health, and biology, transmission is the passing of a pathogen causing communicable disease from an infected host individual or group to a particular individual or group, regardless of whether the other individual was previously infected. The term strictly refers to the transmission of microorganisms directly from one individual to another by one or more of the following means: * airborne transmission – very small dry and wet particles that stay in the air for long periods of time allowing airborne contamination even after the departure of the host. Particle size 5 μm. * direct physical contact – touching an infected individual, including sexual contact * indirect physical contact – usually by touching a contaminated surface, including soil (fomite) * fecal–oral transmission – usually from unwashed hands, contaminated food or water sources due to lack of sanitation and hygiene, an important transmission route in pediatrics, veterinary medicine and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disease Vector
In epidemiology, a disease vector is any living agent that carries and transmits an infectious pathogen to another living organism; agents regarded as vectors are organisms, such as parasites or microbes. The first major discovery of a disease vector came from Ronald Ross in 1897, who discovered the malaria pathogen when he dissected a mosquito. Arthropods Arthropods form a major group of pathogen vectors with mosquitoes, flies, sand flies, lice, fleas, ticks, and mites transmitting a huge number of pathogens. Many such vectors are haematophagous, which feed on blood at some or all stages of their lives. When the insects feed on blood, the pathogen enters the blood stream of the host. This can happen in different ways. The ''Anopheles'' mosquito, a vector for malaria, filariasis, and various arthropod-borne-viruses (arboviruses), inserts its delicate mouthpart under the skin and feeds on its host's blood. The parasites the mosquito carries are usually located in its salivary gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argasidae
The Argasidae are the family of soft ticks, one of the three families of ticks. The family contains 193 species, although the composition of the genera is less certain, and more study is needed before the genera can become stable. The currently accepted genera are '' Antricola'', '' Argas'', '' Nothoaspis'', ''Ornithodoros'', and '' Otobius''. The Argasidae are very common in South Asia, along with 96 other species of ticks, making South Asia the region with the highest biodiversity of ticks worldwide. Soft ticks are resistant to desiccation and can live for several years in arid conditions. Physical characteristics Soft ticks lack the hard scutum present in the hard ticks (Ixodidae). The gnathosoma (or capitulum, the mouthparts-bearing structure) is located on the underside of the animal's body and is not readily visible, while in the Ixodidae, the gnathosoma projects forward from the body. The lateral edges of the body are rounded. See also *Ticks of domestic animals Ticks of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argas
''Argas'' is a genus of tick. Species * '' Argas abdussalami'' Hoogstraal & McCarthy, 1965 * '' Argas acinus'' Whittick, 1938 * '' Argas africolumbae'' Hoogstraal, Kaiser, Walker, Ledger, Converse & Rice, 1975 * '' Argas arboreus'' Kaiser, Hoogstraal & Kohls, 1964 * '' Argas assimilis'' Teng & Song, 1983 * '' Argas beijingensis'' Teng, 1983 * '' Argas beklemischevi'' Pospelova-Shtrom, Vasil'eva & Semashko, 1963 * '' Argas brevipes'' Banks, 1908 * '' Argas brumpti'' Neumann, 1907 * '' Argas bureschi'' Dryenski, 1957 * '' Argas canestrinii'' Birula, 1895 * '' Argas cooleyi'' Kohls & Hoogstraal, 1960 * '' Argas cooleyi'' McIvor, 1941 * '' Argas cucumerinus'' Neumann, 1901 * '' Argas dalei'' Clifford, Keirans, Hoogstraal & Corwin, 1976 * ''Argas delanoei'' Roubaud & Colas-Belcour, 1931 * '' Argas dulus'' Keirans, Clifford & Capriles, 1971 * '' Argas eboris'' Theiler, 1959 * '' Argas echinops'' Hoogstraal, Uilenberg & Blanc, 1967 * ''Argas falco'' Kaiser & Hoogstraal, 1974 * ''Argas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centers For Disease Control And Prevention
The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency, under the Department of Health and Human Services, and is headquartered in Atlanta, Georgia. The agency's main goal is the protection of public health and safety through the control and prevention of disease, injury, and disability in the US and worldwide. The CDC focuses national attention on developing and applying disease control and prevention. It especially focuses its attention on infectious disease, food borne pathogens, environmental health, occupational safety and health, health promotion, injury prevention and educational activities designed to improve the health of United States citizens. The CDC also conducts research and provides information on non-infectious diseases, such as obesity and diabetes, and is a founding member of the International Association of National Public Health Institutes. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
