Electron Microscopy – an imaging method, which uses a focused beam of electrons to enlarge the image of an object on a screen or photographic plate.

Endocytosis – the process in which cells take in fluids or other large molecules.

Enzyme – a type of protein, which catalyzes the reactions between substrates (substances).

Filovirus – The thread-like virus family which includes such viruses as Ebola and Marburg; very deadly.

Genes – a sequence of DNA or RNA that is located on a chromosome and that is the functional unit of inheritance controlling the transmission of traits and function of other genetic material.

Glycoprotein – a compound produced by mixing a protein with any member of a carbohydrate group.

Helper T cells – coordinate the actual immune response of the body; they let other T cells and B cells do their jobs.

Hemorrhagic fever – a condition characterized by non-stop internal or external bleeding resulting from a viral infection which has caused blood vessel damage.

Hereditary material – material responsible for the transmission of qualities from ancestor to descendant through genes.

Host – a living organism, which provides subsistence or lodgment to a parasite.

Humoral immune response – the immune responses mediated by antibodies.

Inactivated vaccine – dead microorganisms used as antigens to produce immunity.

Inclusion bodies – strange and unusual structures found inside a host cell during virus replication.

Infection – the state produced by the presence of an infective agent in or on a suitable host.

Immune System – A body function designed to defend the body from disease causing microorganisms.

Immunity – the condition of being immune, the protection against infectious disease.

Latent infection – viral infection in which the virus responsible is able to avoid the hosts immune system and defenses.

Leukocytes – the majority of the specialized cells used in the immune system; white blood cells.

Lipid – a fatty and oily compound used by cells as energy reserves and material for structure.

Lymph nodes – small bean-shaped organ made up large numbers of lymphocytes, macrophages and accessory cells located along the lymphatic system.

Lymphoid tissue – tissue made up white blood cells and special fibers.

Lysis – the cell membrane of a host is completely destroyed and newly replicated viruses are unleashed instantaneously.

 

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