Lice, Bedbugs, Cockroaches, Mites, Rodents, Venomous Arthropods, Insect Bites and Stings, Snakebites, Poisoning, and Intoxication

Flashcards about lice, bedbugs, cockroaches, mites, rodents, venomous arthropods, insect bites and stings, snakebites, poisoning, and intoxication.

Pediculosis

Infestation of lice on a human host.

Louse-borne typhus

Historical medical problem and one of the few serious insect-transmitted diseases in which man serves as the infection reservoir.

Trench fever

Thought to be related to typhus fever; does not kill but can be a debilitating epidemic disease among louse-infected troops.

Louse-borne relapsing fever

Caused by a spirochete which a flexible and spiral shaped form of bacteria.

Head Louse

Found upon the head and the neck, clinging to the hairs; its egg, a nit, is cemented to the hair.

Body Louse

Found upon the body, spending much of its time attached to the undergarments; its egg is attached to fibers of the underclothing.

Crab louse

Found upon hair in the pubic and anal regions, but on occasion may be found in the eyebrows and other areas of the body; spread mainly by physical contact.

Bedbugs

Flat, reddish-brown, and wingless insects with sucking mouthparts, approximately 6 mm (1/5 in) in length.

Cockroaches

Most common and persistently troublesome arthropod pest encountered indoors.

Mites of medical importance

Mites based upon their habitats can be classified into four groups: nest-inhabiting mites parasitic on birds and rodents, and which occasionally bite man, mites parasitic on animals and which occasionally bite man, mites parasitic on man, and food-infesting mites that occasionally bite man.

Scabies or Itch mite

Transmitted through close body contact and may appear wherever social conditions cause excessive crowding of people; burrows in the horny layer of the dermis, causing an intense itching, especially at night, and occasionally erythema.

Most important rodents from the medical and economical viewpoint

Including Norway Rat, Roof Rat, House Mouse.

Venom Types

Venoms produced by arthropods are mixtures of four toxic types: Vesicating, Neurotoxic, Cytolytic, Hemolytic.

Delirium tremens (DTS)

Condition characterized by sweating, trembling (hands), anxiety, and hallucinations