Nonpathogenic
What it means
Not capable of causing disease.
Reach for it when describing an organism or strain not known to cause disease in a specified host
The laboratory strain is nonpathogenic and safe for classroom study.
Not capable of causing disease.
Reach for it when describing an organism or strain not known to cause disease in a specified host
The laboratory strain is nonpathogenic and safe for classroom study.
| everyday | |
|---|---|
| warm | |
| professional | |
| formal |
everyday
Fits when plain reassurance is justified for the stated context
Careful Harmless is broader and more absolute.
everyday
non-disease-causing
Fits when transparent wording aids nontechnical readers
Careful The phrase needs the host population specified.
warm
safe strain
Fits when practical classroom or production use is supported
Careful Safety includes more than pathogenicity.
professional
avirulent
Fits when a strain lacks disease-producing virulence
Careful Avirulent organisms can still pose risks in unusual hosts.
professional
commensal
Fits when an organism lives with a host without ordinarily harming it
Careful A commensal can become opportunistic.
formal
Fits when the organism's effect is not damaging
Careful Benign is less precise in microbiology.
nonpathogenic strain
The class worked only with a documented nonpathogenic strain.
nonpathogenic organism
A nonpathogenic organism can still require careful containment.
normally nonpathogenic
The bacterium is normally nonpathogenic in healthy adults.
Keep in mind
Pathogenicity depends on strain, host, dose, and route; nonpathogenic never means risk-free in every setting.
Definitions and examples are written for this site. How words are chosen Updated
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