Arthopods (flea), Md. Abdul Alim, Chittagong Veterinary and Animal Sciences Uni


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Arthopods (flea), Md. Abdul Alim, Chittagong Veterinary and Animal Sciences Uni

  1. 1. Lecture outlines  Different species of fleas Structure of the fleas  Adult (Head, Neck, abdomen) Mouth part of a flea and feeding Mechanism Eggs Larva Pupa Behaviour and Ecology  Life cycle Pathogenesis Vector Importance  Transmission of Yersinia pestitis from rat to human Public Health Significance  Diagnosis  Treatment, prevention and control Fleas Lecture on flea by MA Alim5/4/2014 1
  2. 2. Family. Species (Vector) Common Name Host Pulicidae Ctenocephalides canis Dog flea Dog & cat Ct .felis Cat flea Cat & dog Pulex irritants Human flea Man( Dog, cat, swine) Xenopsylla cheopis Oriental rat flea, Tropical rat flea Human, Rodent, cats Xenopsylla asiatica Xenopsylla braziliensis Xenopsylla bantorum Echidnophoga gallinacea Stick tight flea of bird/Burrowing Flea Bird (Comb, wattles), Dog, Man Tunga penetrans Jigger flea of human /sand flea /Chigoe flea /Burrowing Man (pig) Spilopsyllus cuniculi Rabbit flea Rabbit (ear), Dog and Cat (Ear/pinna) Ceratophyllidae Ceratophyllus gallinae Commonest poultry Flea / European Hen flea Poultry, (Man, Pet animal) Ceratophyllus niger Western Chicken flea Chicken Nosopsyllus faciatus Nothern Rat flea Rodent (Man and other animal). Leptopsyllidae Leptopsylla segnis European mouse/House mouse flea Ctenophthalmidae Stenoponia tripectinata Order: Siphonaptera (Flea) Lecture on flea by Alim5/4/2014 2
  3. 3. Structure of a Flea Adult Lecture on flea by Alim5/4/2014 3
  4. 4. Stylets/fascicle= Two maxillary laciniae + Labrum epipharynx Apyrase?? Cibrarial Pump Pharyngeal pump Feeding Mechanism Solenophages?? Lecture on flea by Alim 5/4/2014 4
  5. 5. Lecture on flea by Alim5/4/2014 5
  6. 6. Eggs Larva Hatching spine, Mandibular silk gland Flea dirt Lecture on flea by Alim5/4/2014 6
  7. 7. Cocoon helps to camouflage it Pupa Exarate/True pupa Head tubercle Lecture on flea by Alim5/4/2014 7
  8. 8. Behaviour and Ecology Life cycle Flea Pyramid Holometabola PPP: 30-75 days (optimum tem….upto 2 years (hot tem) What about the L/C of burrowing flea????? Lecture on flea by Alim5/4/2014 8
  9. 9. Pathogenesis (In pets)  Anaemia and Flea dirt  Flea Allergy Dermatitis (FAD) T penetrans on dog snout Lecture on flea by Alim5/4/2014 9
  10. 10.  In Poultry Neosomy Long barbed mouth part, aid in attachment Lecture on flea by Alim5/4/2014 10
  11. 11. Vector Importance Lecture on flea by Alim5/4/2014 11
  12. 12. Transmission of Yersinia pestis from Rat to Human Blockage ProventiculusPlague bacilli partial blockage Lecture on flea by Alim5/4/2014 12
  13. 13. Tungiasis Public Health Significance Purpura pulicosa Roseola pulicosaLecture on flea by Alim5/4/2014 13
  14. 14. Public Health Significance  Annoying bite (Purpuria pulicosa and Roseola pulicosa) Discomfort Dermatitis/Allergic reaction Painful lesion of skin, feet, toe (Tunga penetrans/burrowing flea) I/H of tape worm  Different disease Plague( urban plague, rural/sylvatic wild rodent plague /la peste/Black death Murine Typhus (Rickettsia typhi) Tungiasis Diagnosis Lecture on flea by Alim5/4/2014 14
  15. 15. Laboratory Confirmation/ Species Identification No comb/ctenidia with Genal and Pronatal comb Spinopsyllus Echidnophaga Pulex Xenopsylla Ct. canis Ct. felis Nosopsyllus fasciatus Ceratophyllus With Pronatal comb only Lecture on flea by Alim5/4/2014 15
  16. 16. Treatment, Prevention and Control Insecticide/ Pulicidess Pulicidal Shampooing Flea repellent Flea collar Dust bath in Poultry Pour on Cleaning (Flea Hot spot)Lecture on flea by Alim5/4/2014 16 Chemical used to kill fleas called Pulicides
  17. 17. Prepared by DR. Md. Abdul Alim Assistant Professor Department of Pathology and Parasitolgy, CVASU PhD fellow, James Cook University, Australia References 1. D.S., Kettle (2000). Medical and Veterinary Entomology, CAB International,2nd edi,pp… 2. G.M.Urqhart., J.Armour., J.L.Duncan., F.W. Jennings., (1966). Veterinary Parasitology, Black well Science Ltd.,2nd edi.pp: 3. D.D.Bowman (2009). Georgis’ Parasitology For Veterinarians, WB Saunders Company, 9th edi.pp…. THANKS Lecture on flea by Alim5/4/2014 17