Monday, September 15, 2014

Week Three: Zaire Ebolavirus


Not-So-Fun Fact: This particular organism is currently wreaking havoc in Liberia, Guinea, Nigeria, and Sierra Leone. Therefore, let us understand it further by its biological characteristics.

Common Name: Zaire Ebola Virus

Scientific Name: Ebolavirus zaire

Ebola is known to be a virus. The classification of a virus as an organism is currently being debated among biologists and taxonomists. The taxonomy pertaining to Zaire Ebolavirus is listed below, after the grouping Virus.

Class: ssRNA negative-strand viruses

Order: Mononegavirales

Family: Filoviridae

Genus: Ebolavirus

Species: E. zaire

Description: The virus itself is encapsulated by a membrane built from the stolen cell membrane of its parent’s host cell. Inside this membrane is a set of nuclear proteins and a single string of RNA—the precursor to DNA—which documents the virus’s genetic code. The viral capsule measures 920 nanometers in length and 80 nanometers in diameter.

Environment: Ebolavirus must inhabit a host animal. It is found in the host’s bodily fluids. Its natural host is the fruit bat of the Pteropodidae family, but primates, including humans, have become accidental hosts. Many other animals have also been found to carry Ebola Virus Disease.

Reproduction & Development: Ebolavirus reproduces by invading an animal cell and stealing phospholipids and proteins to duplicate itself. The new ebolavirus units escape into the rest of the host to do the same to other cells. In humans the incubation period of Ebola is 2-21 days.

Nutrition: Ebola, like many viruses, feeds off of its host. It steals material from the cells of its host to help itself grow and replicate. The host cell’s cell membrane is especially damaged in the virus’s feeding frenzy.

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