Viral hemorrhagic fevers (vhfs) are diseases caused by groups of viruses such as the ebola virus and marburg virus in general, infection with these viruses may cause serious illness with fever and damage to blood vessels affecting many organ systems. Viral hemorrhagic fever, abbreviated as vhf, is a deadly disease that can occur in animals, primarily in rodents, and humans it is considered a category a disease, one of the most serious agents used for bioterrorism, due to its potential power to kill and create world-wide panic in the 21st century. In the laboratory all the viral hemorrhagic fever agents, except dengue virus, are infectious by aerosol incubation period: the overall incubation period ranges from 2 to 21 days clinical effects: there is great diversity in the symptoms of these illnesses and infection by these. Home ‣ public health ‣ communicable disease ‣ bioterrorism ‣ potential agents ‣ viral hemorrhagic fevers: basic information viral hemorrhagic fevers: basic information viral hemorrhagic fevers (vhf) are infections caused by a viruses (germs) that are common in africa and south america, but very rare in the united states.
Viral hemorrhagic fevers (vhfs) are a diverse group of animal and human illnesses in which fever and hemorrhage are caused by a viral infectionvhfs may be caused by five distinct families of rna viruses: the families arenaviridae, filoviridae, bunyaviridae, flaviviridae, and rhabdoviridae. Ebola: a significant threat as an infectious disease, and as a potential bioterrorism agent it has been mentioned that spread of the ebola virus is rapid, and prevention possibilities are limited (1. Treatment and prophylaxis - table 1 viral hemorrhagic fevers ciprofloxacin doxycycline combination therapy of ciprofloxacin or doxycycline, plus one or two other antimicrobials should be considered with inhalation anthrax.
Public health preparedness bioterrorism agents - viral hemorrhagic fever what is viral hemorrhagic fever viral hemorrhagic fever (vhf) refers to a group of illnesses that are caused by four distinct families of viruses. Diagnosis diagnosing specific viral hemorrhagic fevers in the first few days of illness can be difficult because the initial signs and symptoms — high fever, muscle aches, headaches and extreme fatigue — are common to many other diseases. Can viral hemorrhagic fevers be used as bioterrorism threats viral hemorrhagic fever viruses can be very infectious, and outbreaks of vhf can result in high death rates ebola and marburg viruses are the most likely of viral hemorrhagic fevers to be used as biological weapons.
Viral hemorrhagic fevers (vhfs) refer to a group of illnesses that are caused by several distinct families of viruses in general, the term viral hemorrhagic fever is used to describe a severe multisystem syndrome (multisystem in that multiple organ systems in the body are affected. • viral agents proposed for use as biologic weapons include smallpox (variola virus), venezuelan equine encephalitis virus, and the multiple agents causing viral hemorrhagic fevers, typified by ebola. As such, viral hemorrhagic fevers are categorized as category a bioterrorism agents due to their high infectivity rate and mortality rates, which can be as high as 90% (ebola) the most likely mode of transmission in a bioterrorist attack would be by aerosol. Clinical overview the concept of a viral hemorrhagic fever (vhf) syndrome is useful in clinical medicine vhf syndrome can be described as an acute febrile illness characterized by malaise, prostration, generalized signs of increased vascular permeability and abnormalities of circulatory regulation. Bioterrorism - viral hemorrhagic fever abstract viral hemorrhagic fever is one of the most feared diseases of today's time although most people have heard of anthrax, smallpox and the plague, viral hemorrhagic fever has become a potent weapon used for bioterrorism, silently killing its victims and instilling fear in the rest of the population.
Bioterrorism agents and diseases the us government has created several, overlapping, lists of viruses, bacteria, toxins, and diseases that could threaten the health and safety of the public, animals, and plants. Agents of bioterrorism some can be spread from person to person (smallpox virus) and some cannot (anthrax) viral hemorrhagic fevers-category a agents. Viral hemorrhagic fevers see also chaps 233 and 234 hemorrhagic fever viruses as bioweapons several of the hemorrhagic fever viruses have been reported to have been weaponized by the soviet union and the united states. What you need to know about viral hemorrhagic fevers and bioterrorism what are viral hemorrhagic fevers viral hemorrhagic fevers (vhfs) are a.
Bioterrorism preparedness: a conference for senior agents of bioterrorism: argument for and against a list that needs • viral hemorrhagic fevers. Additionally viral hemorrhagic fever (vhf) viruses such as lassa, marburg, and ebola rarely, if ever, identified in north america, may be deliberately introduced other potential agents include brucellosis, western and eastern equine viruses that. Other diseases of interest to bioterrorism include brucellosis, glanders, melioidosis, q fever, and viral encephalitis food safety and water safety threats are another area of concern the use of biological weapons in terrorism remains a threat. Specific symptoms vary by type of viral hemorrhagic fever, but initial symptoms often include fever, fatigue, dizziness, muscle aches, loss of strength, and exhaustion patients with severe cases of viral hemorrhagic fever often bleed under the skin, in internal organs or from body openings.
Viral hemorrhagic fevers etiologic agents arenaviradae (lassa, junin, machupo, guanarito, and sabia), filoviradae (marburg and ebola), bunyaviradae (congo-crimean hemorrhagic fever virus and hantaviruses)and flaviradae (yellow fever and dengue) can all cause viral hemorrhagic fever (vhf. Viral hemorrhagic fever is an acute systemic illness classically involving fever, a constellation of initially nonspecific signs and symptoms, and a propensity for bleeding and shock it may be caused by more than 25 different viruses from four taxonomic families, filoviridae, arenaviridae, bunyaviridae, and flaviviridae ( table 389-1. Viral hemorrhagic fevers (vhfs) are a group of diseases caused by ribonucleic acid (rna) viruses from four distinct families these diseases include ebola hemorrhagic fever, marburg hemorrhagic fever, lassa fever, hantavirus pulmonary syndrome, and yellow fever symptoms vary with the disease, but. Here, we review the literature on viral hemorrhagic fever and discuss the role played by platelets in the coagulopathy we also discuss the possibility of using anti-platelet agents to moderate the coagulopathy.