What is a characteristic of the disease Ebola?
Ebola is a rare but deadly virus that causes fever, body aches, and diarrhea, and sometimes bleeding inside and outside the body. As the virus spreads through the body, it damages the immune system and organs. Ultimately, it causes levels of blood-clotting cells to drop. This leads to severe, uncontrollable bleeding.
What is Ebola virus in microbiology?
Ebola virus (EBOV), which belongs to the genus Ebolavirus, causes a severe and often fatal infection in primates, including humans, whereas Reston virus (RESTV) only causes lethal disease in non-human primates.
What type of microorganism is Ebola?
Ebola is one of several viral hemorrhagic fevers, caused by infection with a virus of the Filoviridae family, genus Ebolavirus.
How is Ebola virus cultured?
Ebola virus has been cultured from specimens such as serum or postmortem tissues. Monolayers of several cell types have successfully been used. Cultures using Vero or Vero E6 cells are typically held for 14 days, with cytopathic effect generally visible at about 7 days after inoculation.
What morphology is Ebola?
Virology. Ebola virus and the closely related Marburg virus (MARV) are members of the Filoviridae family, named for the filamentous morphology of virions that appear by electron microscopy to be a consistent diameter of approximately 80 nm, but nonuniform in length.
How is Ebola virus diagnosis?
Ebola virus can be detected in blood after onset of symptoms. It may take up to three days after symptoms start for the virus to reach detectable levels. Polymerase chain reaction (PCR) is one of the most commonly used diagnostic methods because of its ability to detect low levels of Ebola virus.
What are the characteristics of viruses Std 8?
They are acellular, that is, they contain no cytoplasm or cellular organelles. They carry out no metabolism on their own and must replicate using the host cell’s metabolic machinery. In other words, viruses don’t grow and divide.
What 7 characteristics do viruses have?
Let’s compare viruses to the 7 criteria researchers have set to determine if something is alive.
- Living things must maintain homeostasis.
- Living things have different levels of organization.
- Living things reproduce.
- Living things grow.
- Living things use energy.
- Living things respond to stimuli.
What are facts about Ebola virus?
Ebola virus disease (commonly just shortened to Ebola) is a dangerous disease spread by contact with body fluids from an infected human or animal. It is a type of viral hemorrhagic fever ( VHFs ), which in turn are fevers that include increased risk of or susceptibility to bleeding.
What are the risk factors of Ebola?
The main risk factors for Ebola virus disease (EVD) include a recent travel to endemic regions, provision of direct care or exposure/processing of blood or body fluids of a symptomatic patient with Ebola virus disease, and direct contact with a dead body in an endemic region without personal protective equipment (PPE).
What is the deadliest virus?
There are five strains of the Ebola virus, each named after countries and regions in Africa: Zaire, Sudan, Tai Forest, Bundibugyo and Reston. The Zaire Ebola virus is the deadliest, with a mortality rate of 90 percent. It is the strain currently spreading through Guinea, Sierra Leone and Liberia, and beyond.
What causes Ebola virus infection?
Ebola virus disease is a serious, often fatal condition in humans and nonhuman primates. Ebola is one of several viral hemorrhagic fevers, caused by infection with a virus of the Filoviridae family, genus Ebolavirus . The fatality rates of Ebola vary depending on the strain.