Some types of VHF viruses – including Ebola, Marburg and Lassa – can be spread from person to person. They are spread through close contact with infected people or their body fluids. People can also be infected through contact with contaminated objects like needles or syringes.
How is hemorrhagic fever spread?
Viral hemorrhagic fevers are spread by contact with infected animals or insects. The viruses that cause viral hemorrhagic fevers live in a variety of animal and insect hosts. Most commonly the hosts include mosquitoes, ticks, rodents or bats. Some viral hemorrhagic fevers can also be spread from person to person.
What is usually the cause of death from VHF?
Infection of humans can be caused by bites from infected insects and animals. The onset of symptoms is sudden and dramatic, and the death rate for VHF can be as high as 90 per cent. One major symptom is bleeding (haemorrhage).
What is VHF infection?
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).
Is viral hemorrhagic fever contagious?
Some viruses that cause hemorrhagic fever can spread from one person to another, once an initial person has become infected.
What is the best treatment for hemorrhagic fever?
While no specific treatment exists for most viral hemorrhagic fevers, the antiviral drug ribavirin (Rebetol, Virazole) might shorten the course of some infections and prevent complications in some people. Other medications are being developed.
Is dengue a VHF?
The family Flaviviridae (order Amarillovirales) includes dengue, yellow fever, and two viruses in the tick-borne encephalitis group that cause VHF: Omsk hemorrhagic fever virus and Kyasanur Forest disease virus.
How do viruses cause human disease?
Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves. This can kill, damage, or change the cells and make you sick. Different viruses attack certain cells in your body such as your liver, respiratory system, or blood.
How do you transmit Ebola?
Ebola is spread by direct contact with blood or other body fluids (such as: vomit, diarrhea, urine, breast milk, sweat, semen) of an infected person who has symptoms of Ebola or who has recently died from Ebola.
Where is Marburg virus found?
Aug 10, 2021
Previous outbreaks of Marburg virus disease, which is spread through contact with the body fluids of infected people or animals, have occurred mainly in eastern and southern Africa, according to The Guardian.