Weakened. Attenuated viruses are often used as vaccines because they can no longer produce disease but may still stimulate a strong immune response. Examples include vaccines against polio (Sabin oral vaccine), measles, mumps, and rubella.
Weakened; with reference to vaccines, made from pathogenic organisms that have been treated so as to render them avirulent.
Weakened. An attenuated virus is one which has been changed such that it will no longer cause disease. An attenuated virus would be used in a modified live vaccine.
Weakened, diluted, thinned, reduced, weakened, diminished. See the entire definition of Attenuated
Weakened; with reference to vaccines, made from pathogenic orgainsms that have been treated so that they are unable to cause disease.
adj. weakened, made less virulent. An attenuated virus is a virus that is still alive but incapable of causing harm.
Weakened or treated in such a way as to decrease the ability of a microorganism (such as parasite or virus) to cause infection or disease.
Weakened or thinned. Attenuated strains of disease-causing bacteria and viruses are often used as vaccines. The weakened strains are used as vaccines because they stimulate a protective immune response while causing no disease or only mild disease in the person receiving the vaccine.
to lessen the amount, force or value of : to weaken.
weakened. Attenuated viruses are often used as vaccines because they can no longer produce disease but still stimulate a strong immune response, like that to the natural virus. Examples of attenuated virus vaccines include oral polio, measles, mumps, and rubella vaccines.
weakened; less pathogenic/disease-causing
made weaker, such as in the weakening of the degree of virulence of a disease organism (for use) in vaccine production. page top
weakened. Pathogens (organisms such as viruses that produce disease) are attenuated to make them safe for use in a vaccine
weakened; with reference to microbiology or virology, to decrease the effectiveness, or virulence, of a pathogen. When a vaccine is attenuated, it means that it contains a weakened virus. This procedure is commonly used to induce active immunity in the body without causing illness. [Source: Biotechnology Industry Organization, www.bio.org
To be weakened. An attenuated vaccine is one that has been weakened by chemicals, or other processes so that it will produce an adequate immune response without causing the serious effects of an infection.
Weakened. Pathogens (organisms that produce disease, e.g. a virus) are attenuated to make them safe when used in a vaccine.
Weakened; no longer infectious.