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A________
Definitions
not virulent; unable to produce disease
Word origin
From a- + virulent.
Used in a sentence
“An isolate from raw fish, serotype 0:6, unable to invade HeLa cells and negative for heat-stable enterotoxin, was clinically avirulent in this model and caused no lesions by histological examination.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
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