What are the viruses that cause viral hemorrhagic fever?
Viral hemorrhagic fevers (VHFs) are a group of illnesses caused by four families of viruses. These include the Ebola and Marburg, Lassa fever, and yellow fever viruses. VHFs have common features: they affect many organs, they damage the blood vessels, and they affect the body’s ability to regulate itself.
What four kinds of viruses have been found to cause hemorrhagic fevers?
Viral hemorrhagic fevers (VHFs) represent a group of severe systemic febrile illnesses caused by four families of viruses – Arenaviridae, Bunyaviridae, Filoviridae, and Flaviviridae.
What virus causes Argentine hemorrhagic fever?
Argentine hemorrhagic fever (AHF) is a rodent-borne illness caused by the arenavirus Junin that is endemic to the humid pampas of Argentina. AHF has had significant morbidity since its emergence in the 1950s, with a case-fatality rate of the illness without treatment between 15% and 30%.
What are two types of hemorrhagic fever in outbreak?
Arenaviruses.
Is Chikungunya a viral hemorrhagic fever?
A study on viral haemorrhagic fever due to dengue, chikungunya and Crimean Congo haemorrhagic fever virus among patients attending tertiary care hospital in North East India. Indian J Med Microbiol.
How is Argentine hemorrhagic fever transmitted?
Argentine hemorrhagic fever – Chem-Bio-Rad Suspicion The corn mouse, Calomys musculinus, is the reservoir, and the disease is transmitted when particles from corn mouse urine or saliva are aerosolized and inhaled.
Is dengue a hemorrhagic viral disease?
As dengue is a “viral hemorrhagic fever”, the disease is under European surveillance. It is by far the most important mosquito-borne viral disease affecting humans worldwide; tens of millions of cases occur each year resulting in approximately 20,000-25,000 deaths mainly in children.
What is the Sabiá virus (SABV)?
We report a fatal case of a new Sabiá virus (SABV)–like mammarenavirus infection in São Paulo, Brazil, in a previously healthy 52-year-old man. On December 30, 2019, he sought care at a basic health facility for odynophagia, epigastric pain radiating to the chest, nausea, vertigo, xerostomy, and myalgia.
What is viral hemorrhagic fever?
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). Characteristically, the overall vascular system is damaged, and the body’s ability to regulate itself is impaired. These symptoms are often accompanied by hemorrhage (bleeding);
What is the mortality and morbidity associated with viral hemorrhagic fevers?
Case fatality rates can be as high as 80%-90% in developing countries. [6] Complications The most severe complications of viral hemorrhagic fevers involve multi-organ system failure and death.
What is the identity percentage of the S segment of SABV?
The S segment had 87% identity and the L segment had 89% identity in a full nucleotide alignment with SABV strain SPH114202 ( Figure, panel A). We submitted sequences to GenBank (accession nos. MN956773 [L segment] and MN956774 [S segment]).