avirulent
adjective
avir·u·lent
(ˌ)ā-ˈvir-(y)ə-lənt 
: not virulent or pathogenic : not capable of causing disease
avirulent strains of salmonellae
avirulent viruses
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“Avirulent.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/avirulent. Accessed 5 Jul. 2025.
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avirulent
adjective
avir·u·lent
(ˈ)ā-ˈvir-(y)ə-lənt
: not virulent
an avirulent tubercle bacillus
compare nonpathogenic
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