The oriental rat flea would become infected by the bacteria: yersinia pestis.
But when rats are scarce, the rat fleas will bite people.
But more significant are the rat fleas, who can nullify any poison their hosts assimilate.
Once converted for use as a vector weapon the E23 could hold 200,000 rat fleas in its interior among small pieces of sponge.
The Oriental rat flea has no genal or pronotal combs.
Northern rat fleas are external parasites, living by hematophagy off the blood of rodents.
The northern rat flea has eyes and a row of three setae below it on the heads.
Instead of the rat flea it's usually spread by ticks and deer- flies.
There is also a snippet of live-action film, a clip showing an Oriental rat flea.
The main vector for typhus is the rat flea.