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NBME1 vaccine - laura81
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02-10-2007, 01:58 AM
29. Poliovirus can be grown in cultured monkey kidney cells through repeated passages, resulting in virus that is no longer neurovirulent. This virus can be used as a vaccine because it has become
A ) attenuated B ) defective C ) inactivated D ) latent E ) recombinant
02-10-2007, 02:59 AM
why not incativated..whats the differnece between these 2?
02-10-2007, 05:25 AM
Definition of Virus, attenuated
Virus, attenuated: To attenuate is to weaken or to make (or become) thin. The word derives from a combination of the Latin prefix "ad-," meaning "to" or "toward," and "tenuis," meaning "thin." The use of "attenuate" in medicine is not new. In the 16th century, eating dried figs was claimed to attenuate the body fluids. Now "attenuate" refers to procedures that weaken an agent of disease (a pathogen). An attenuated virus is a weakened, less vigorous virus. A vaccine against a viral disease can be made from an attenuated, less virulent strain of the virus, a virus capable of stimulating an immune response and creating immunity but not causing illness. |
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