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14 Cards in this Set

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a noncellular infectious particle consisting of nucleic acid (DNA or RNA) enclosed in a protein coat
virus
an RNA virus that infects animal cells
retrovirus
diseases caused by infetious proteins smaller than viruses
Prion
microscopic progaryotic cells. Most have a single,circular chromosome and may also have extra DNA in plasmids
bacteria
protozoa (single-celled eukaryotes that are pathogenic and are often spread by way of water or food contaminated with feces from infected people or other animals
parasites
physically carries pathogens or contamnated material to new hosts
disease ector
infection that is acquired in a hospital, usually by direct contact
nosocomial infection
makes more peope ill than experience would have predicted.
epidemic
occurs when epidemics break out more or less simultaneously in various places around the world.
pandemic
gauge of a pathogen's ability to cause serious disease
virulence
viruses that infect bacteria
bacteriohages or phages
six step cycle for viruses to multiply
1. attachment to the host
2. entry into the cell's cytoplasm
3. replication of DNA or RNA
4. synthesis of enzymes and other proteins
5. assembly into new virus particles
6. release of new virus particles from the cell
viruses that infect bacteria
bacteriohages or phages
six step cycle for viruses to multiply
1. attachment to the host
2. entry into the cell's cytoplasm
3. replication of DNA or RNA
4. synthesis of enzymes and other proteins
5. assembly into new virus particles
6. release of new virus particles from the cell