Chapter 17 Pt 1

Scabies very small mites highly transmissible hosts

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: xins in venom produce painful stings or bites –  Face most often affected Arthropoda - Arachnids •  Four pairs of legs, no antennae •  Bodies have two parts –  Cephalothorax, abdomen •  Fused in many 5cks •  No wings •  Ectoparasites –  Acari •  Mites and 5cks –  Araneae •  Spiders –  Scorpionida Arthropoda - Arachnids •  Four basic life-cycle stages –  Egg –  Six-legged larva –  Eight-legged nymph –  Eight-legged adult •  Classification of Acari suborders based on location of respiratory opening Arthropoda - Arachnids •  Astigmata –  Mites •  Skin irritation •  Hair loss •  Thickening of skin •  Predispose animal to bacterial and fungal infections –  Mange= •  Skin disease caused by mites •  Astigmata Arthropoda - Arachnids –  Sarcoptes scabiei •  •  •  •  Causes scabies Very small mites Highly transmissible Hosts include dogs, swine, sheep, goats, cattle, humans •  Diagnosis made by scraping or response to therapy –  Causes hair loss and itching –  Eliminated with topical acaricide or systemic parasiticide –  All animals in contact should be treated –  ZOONOTIC Arthropoda - Arachnids •  Astigmata –  Notoedres cati •  Sarcoptiform mite •  Primarily affects cats •  Burrow into superficial skin, lay eggs in tunnels •  Highly...
View Full Document

This note was uploaded on 04/07/2014 for the course AVS 201 taught by Professor Mallilo during the Spring '11 term at Rhode Island.

Ask a homework question - tutors are online