nonpersistent
adjective
non·per·sis·tent
ˌnän-pər-ˈsi-stənt
-ˈzi-
: not persistent: such as
a
: decomposed rapidly by environmental action
nonpersistent insecticides
b
: capable of being transmitted by a vector for only a relatively short time
nonpersistent viruses
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Merriam-Webster unabridged
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