Xenopsylla
noun
Xen·op·syl·la
ˌzen-äp-ˈsil-ə 
: a genus of fleas of the family Pulicidae including several (as the oriental rat flea) that are important as vectors of plague
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“Xenopsylla.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Xenopsylla. Accessed 8 Jul. 2025.
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