arthopods (flea), md. abdul alim, chittagong veterinary and animal sciences uni
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Flea PresentationTRANSCRIPT
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04/07/2023 1
Lecture outlines
Different species of fleasStructure of the fleas
Adult (Head, Neck, abdomen)Mouth part of a flea and feeding Mechanism
Eggs LarvaPupa
Behaviour and Ecology Life cyclePathogenesisVector Importance Transmission of Yersinia pestitis from rat to humanPublic Health Significance Diagnosis Treatment, prevention and control
Fleas
Lecture on flea by MA Alim
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04/07/2023 2
Family. Species (Vector) Common Name HostPulicidae 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 Alim
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04/07/2023 Lecture on flea by Alim 3
Structure of a Flea
Adult
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04/07/2023 4
Stylets/fascicle=Two maxillary laciniae + Labrum epipharynx
Apyrase??
Cibrarial PumpPharyngeal pump
Feeding Mechanism Solenophages??
Lecture on flea by Alim
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04/07/2023 Lecture on flea by Alim 5
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04/07/2023 Lecture on flea by Alim 6
Eggs LarvaHatching spine,
Mandibular silk gland
Flea dirt
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04/07/2023 Lecture on flea by Alim 7
Cocoon helps to camouflage it
Pupa
Exarate/True pupa
Head tubercle
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04/07/2023 Lecture on flea by Alim 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?????
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04/07/2023 Lecture on flea by Alim 9
Pathogenesis (In pets) Anaemia and Flea dirt
Flea Allergy Dermatitis (FAD)
T penetrans on dog snout
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04/07/2023 10
In PoultryNeosomy
Long barbed mouth part, aid in attachment
Lecture on flea by Alim
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04/07/2023 Lecture on flea by Alim 11
Vector Importance
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04/07/2023 Lecture on flea by Alim 12
Transmission of Yersinia pestis from Rat to Human
Blockage ProventiculusPlague bacilli partial blockage
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04/07/2023 Lecture on flea by Alim 13
Tungiasis
Public Health Significance
Purpura pulicosa
Roseola pulicosa
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04/07/2023 Lecture on flea by Alim 14
Public Health Significance Annoying bite (Purpuria pulicosa and Roseola pulicosa) DiscomfortDermatitis/Allergic reactionPainful 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
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04/07/2023 Lecture on flea by Alim 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
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04/07/2023 Lecture on flea by Alim 16
Treatment, Prevention and Control
Insecticide/Pulicidess
Pulicidal Shampooing Flea repellent Flea collar
Dust bath in Poultry
Pour on
Cleaning (Flea Hot spot)
Chemical used to kill fleas called Pulicides
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04/07/2023 Lecture on flea by Alim 17
Prepared by DR. Md. Abdul AlimAssistant Professor
Department of Pathology and Parasitolgy, CVASUPhD fellow, James Cook University, Australia
References1. 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