hemorrhagic
(adjective)
of, relating to, or producing excessive loss of blood or blood escape from the circulatory system.
Examples of hemorrhagic in the following topics:
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Classic Viral Hemorrhagic Fevers
- Viral hemorrhagic fevers (VHFs) are a group of illnesses that are caused by several distinct families of RNA viruses.
- The family Arenaviridae include the viruses responsible for Lassa fever, Lujo virus, Argentine, Bolivian, Brazilian and Venezuelan hemorrhagic fevers.
- The family Bunyaviridae include the members of the Hantavirus genus that cause hemorrhagic fever with renal syndrome (HFRS), the Crimean-Congo hemorrhagic fever (CCHF) virus from the Nairovirus genus, Garissa virus from the Orthobunyavirus and the Rift Valley fever (RVF) virus from the Phlebovirus genus.
- For most viral hemorrhagic fevers, there is no effective treatment other than supportive care.
- List the types, symptoms and routes of transmission for viral hemorrhagic fevers
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Emerging Viral Hemorrhagic Fevers
- As human habitation expands, new viral hemorrhagic fevers are infecting humans.
- The viral hemorrhagic fevers (VHFs) are a diverse group of animal and human illnesses that may be caused by five distinct families of RNA viruses: the families Arenaviridae, Filoviridae, Bunyaviridae, Flaviviridae, and Rhabdoviridae.
- Indeed the advent of deep sequencing technologies and other methods are identifying emergent viral hemorrhagic fevers.
- A recent study using deep sequencing, discovered a novel rhabdovirus (Bas-Congo virus, or BASV) associated with a 2009 outbreak of three human cases of acute hemorrhagic fever in Mangala village, Democratic Republic of Congo (DRC), Africa.
- Although the source of the virus remains unclear, the study findings suggest that BASV may be spread by human-to-human contact and is an emerging pathogen associated with acute hemorrhagic fever in Africa .
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Hantavirus
- Hantaviruses are negative-sense RNA viruses that sometimes lead to hemorrhagic fever with renal syndrome in humans.
- Although some hantaviruses lead to potentially fatal diseases, such as hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS), not all are associated with human disease.
- HTNV is one of several hantaviruses that cause hemorrhagic fever with renal syndrome (HFRS), formerly known as Korean hemorrhagic fever.
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Cystitis
- Hemorrhagic cystitis can occur as a side effect of cyclophosphamide, ifosfamide, and radiation therapy.
- Radiation cystitis, one form of hemorrhagic cystitis is a rare consequence of patients undergoing radiation therapy for the treatment of cancer.
- Several adenovirus serotypes have been associated with an acute, self-limited hemorrhagic cystitis, which occurs primarily in boys.
- Differentiate among the distinct types of cystitis: traumatic, interstitial, eosinophilic, hemorrhagic cystitis, and cystitis cystica, recognizing their causes and risk factors
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Safety in the Microbiology Laboratory
- Viruses and bacteria that cause severe to fatal disease in humans, and for which vaccines or other treatments are not available, such as Bolivian and Argentine hemorrhagic fevers, Dengue hemorrhagic fever, Marburg virus, Ebola virus, hantaviruses, Lassa fever virus, Crimean-Congo hemorrhagic fever, and other hemorrhagic diseases.
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Aflatoxin Poisoning
- Acute aflatoxicosis is characterized by symptoms such as hemorrhaging; acute liver damage and issues with digestion; and absorption and metabolism of nutrients.
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Type III (Immune Complex) Reactions
- Platelet aggregation, especially in microvasculature, can cause localized clot formation, leading to blotchy hemorrhages.
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The Cardiovascular System
- Damage, due to trauma or spontaneously, may lead to hemorrhage due to mechanical damage to the vessel endothelium.
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Penetrating Host Defenses
- Infection often leads to hemorrhagic diarrhea and occasionally to kidney failure, especially in young children and elderly persons.
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Special Culture Techniques
- Biosafety Level 4: This level is reserved for work with dangerous and exotic agents that pose a high individual risk of aerosol-transmitted laboratory infections, agents that cause severe to fatal disease in humans for which vaccines or other treatments are not available, such as Bolivian and Argentine hemorrhagic fevers, Marburg virus, and the Ebola virus.