What's eating you? human flea (Pulex irritans).

The human flea, Pulex irritans, is an important vector in the transmission of human diseases. This flea has been identified as a vector for the bubonic plague as far back as the 14th century, causing millions of deaths. Pulex irritans also has been identified as a vector for Bartonella bacteria species, which can cause trench fever. Rickettsia species, which can cause Rocky Mountain spotted fever and Mediterranean spotted fever, also have been identified in P irritans. Flea bites present as intensely pruritic papules and can be treated with topical antipruritics and corticosteroids. The most effective form of flea control and prevention includes a combination of insecticidal products and insect growth regulators.