Paula Boyden March ITP Presentation
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Transcript of Paula Boyden March ITP Presentation
![Page 1: Paula Boyden March ITP Presentation](https://reader034.fdocuments.net/reader034/viewer/2022042614/559321cf1a28ab8f418b468b/html5/thumbnails/1.jpg)
International Training Veterinary
Paula Boyden BVetMed MRCVS
Veterinary Director
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INTRODUCTIONINTRODUCTION
BiosecurityBiosecurity
Population managementPopulation management
Duty of CareDuty of Care
Quality of lifeQuality of life
Stress managementStress management
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BIOSECURITYBIOSECURITY
Purpose:Purpose:
Minimise risk of infectionMinimise risk of infection
Minimise effects of an infectionMinimise effects of an infection
Factors Affecting Spread:Factors Affecting Spread:
IncubationIncubation
Excretion of infectionExcretion of infection
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TRANSMISSION OF INFECTIONTRANSMISSION OF INFECTION
DirectDirect
IndirectIndirect
ZoonosisZoonosis
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Direct TransmissionDirect Transmission
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Indirect TransmissionIndirect Transmission
What is a fomite?What is a fomite?
Floors/wallsFloors/walls
Bowls/blanketsBowls/blankets
AirAir
PeoplePeople
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ZoonosisZoonosis
What is a zoonosis?What is a zoonosis?
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Rejects foreign cells e.g.Organ transplants
The Immune SystemDefends the body against Foreign (non self) antigens
Rejects and destroysabnormal cells e.g. cancer cells
Reactions to allergens e.gPollens, foods, drugs etc
Attacks body’s own cellsi.e. Autoimmune disease
FIGHTS INFECTIOUS ORGANISMS
ImmunityImmunity
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Types of ImmunityTypes of Immunity
In h erited A cq u ire d N a tu ra lly A cq u ire d A rtif ic ia lly
Im m u n ity
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Naturally Acquired ImmunityNaturally Acquired Immunity
ActiveActive
following infection following infection (antibodies & CMI)(antibodies & CMI)
PassivePassive
MDAMDA
via dam’s milk (90%)via dam’s milk (90%)
via placental transfervia placental transfer
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Artificially Acquired ImmunityArtificially Acquired Immunity
ActiveActivevaccine or toxoidvaccine or toxoid
PassivePassiveinjection of antibodies (antiserum)injection of antibodies (antiserum)
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Factors Affecting ImmunityFactors Affecting Immunity
• FeedingFeeding
• PregnancyPregnancy
• StressStress
• DrugsDrugs
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INFECTION & IMMUNITYINFECTION & IMMUNITY
ImmunityImmunity
InfectionInfection
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Rising Infection and ImmunityRising Infection and Immunity
ImmunityImmunity
InfectionInfection
InfectionInfection
ExcretionExcretionstartsstarts
SymptomsSymptoms
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Infection and Passive ImmunityInfection and Passive Immunity
ImmunityImmunity
TimeTime
Low infectionlevels
InfectionInfection SymptomsSymptoms
ExcretionExcretionstartsstarts
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High and Low Levels of InfectionHigh and Low Levels of Infection
ImmunityImmunity
TimeTime
High infectionHigh infectionlevelslevels
Low infectionLow infectionlevelslevels
InfectionInfection
ExcretionExcretionstartsstarts
SymptomsSymptoms
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MATERNALLY DERIVED MATERNALLY DERIVED ANTIBODYANTIBODY
Weeks
MD
A
VaccinationVaccination
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MATERNALLY DERIVED MATERNALLY DERIVED ANTIBODYANTIBODY
Weeks
MD
A
VaccinationVaccination
Low infectionLow infectionlevellevel
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VaccinesVaccines
Vaccines are used to protect against:Vaccines are used to protect against:
Viruses - eg ParvovirusViruses - eg Parvovirus
Bacteria - eg LeptospirosisBacteria - eg Leptospirosis
Protozoa/Helminths eg HuskProtozoa/Helminths eg Husk
(sets off immune response identical to (sets off immune response identical to natural infection)natural infection)
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Types of VaccineTypes of Vaccine
Live, attenuated e.g. DHPLive, attenuated e.g. DHP
Killed (inactivated) e.g. LeptospirosisKilled (inactivated) e.g. Leptospirosis
Heterologous e.g. smallpoxHeterologous e.g. smallpox
Toxoids e.g. Tetanus ToxoidToxoids e.g. Tetanus Toxoid
Specific Antigen (Sub unit)Specific Antigen (Sub unit)
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Live VaccinesLive Vaccines
‘‘Better’ stimulation of Better’ stimulation of immune systemimmune system
V. rapid responseV. rapid response
Usually single doseUsually single dose
More persistent level of More persistent level of immunityimmunity
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Killed VaccinesKilled Vaccines
Generally require two Generally require two injections for primary injections for primary coursecourse
Require more frequent Require more frequent boostersboosters
NB - both must pass the NB - both must pass the same safety testssame safety tests
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Primary Course VaccinationPrimary Course Vaccination
1
10000
0 2 4 6 8 10 12 14 16 18 20 22 24
LiveLive
KilledKilled
Antibody Antibody titretitre
Age (weeks)Age (weeks)
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CLEANINGCLEANING
• Remove all faecesRemove all faeces
• Clean thoroughlyClean thoroughly
• Pressure hosePressure hose
• DisinfectDisinfect
• Leave 20-30 minutesLeave 20-30 minutes
• DryDry
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AIR MANAGEMENTAIR MANAGEMENT
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AIR MANAGEMENTAIR MANAGEMENT
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AIR MANAGEMENTAIR MANAGEMENT
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PEOPLEPEOPLE
Personal hygienePersonal hygiene• Hand washingHand washing• Personal gels Personal gels • ClothingClothing
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How to Wash Your HandsHow to Wash Your Hands
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Any Questions?Any Questions?
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MANAGEMENTMANAGEMENT
QuarantineQuarantine
IsolationIsolation
ProgressionProgression
SectioningSectioning
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Questions so far?Questions so far?
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WHY MANAGE STRAYS?WHY MANAGE STRAYS?
WelfareWelfareZoonoses:Zoonoses:
RabiesRabiesToxocara/EchinococcusToxocara/EchinococcusEnteric organismsEnteric organismsInsect borne organismsInsect borne organismsRingwormRingworm
Public nuisancePublic nuisance
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MEASURING NUMBERSMEASURING NUMBERS
MobilityMobility
Lack of individual identificationLack of individual identification
Catch/mark/releaseCatch/mark/release
Calculation:Calculation:
Total population = Total population = number marked x total countednumber marked x total countedmarked countedmarked counted
Alternatives Alternatives
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FACTORS AFFECTING NUMBERSFACTORS AFFECTING NUMBERS
FoodFood
WaterWater
Nesting spacesNesting spaces
Birth ratesBirth rates
DiseaseDisease
Mortality ratesMortality rates
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METHODS OF CONTROLMETHODS OF CONTROL
KillingKilling
SanctuarySanctuary
Trap/neuter/releaseTrap/neuter/release
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NEUTERINGNEUTERING
Benefit to individual:Benefit to individual:
Reproductive system diseaseReproductive system disease
NeoplasiaNeoplasia
BehaviourBehaviour
Population controlPopulation control
CostCost
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POPULATION DYNAMICSPOPULATION DYNAMICS
0
50
100
150
200
250
300
350
400
450
8 pups/10yr 6 pups/10yr 6 pups/5yr 3 pups/5yr
Start
0%
70%
80%
90%
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MALE OR FEMALE?MALE OR FEMALE?
Males onlyMales onlyFirst year -First year - 10 male, 10 female, 20 dogs10 male, 10 female, 20 dogsResult:Result: 60 pups produced60 pups produced
Neuter 9 adult malesNeuter 9 adult malesSecond year-Second year- 1 entire male, 9 neutered 1 entire male, 9 neutered
males, 10 females, 60 pupsmales, 10 females, 60 pupsResult:Result: 60 more pups produced60 more pups produced
Population 130 dogsPopulation 130 dogs1 very tired but happy male1 very tired but happy male
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MALE OR FEMALE?MALE OR FEMALE?
Females onlyFemales only
First year -First year - 10 male, 10 female, 20 dogs10 male, 10 female, 20 dogs
Result:Result: 60 pups produced60 pups produced
Neuter 9 adult femalesNeuter 9 adult females
Second year-Second year- 10 males, 9 neutered females, 10 males, 9 neutered females, 1 entire female, 60 pups1 entire female, 60 pups
Result:Result: 6 pups produced6 pups produced
Population 86 dogsPopulation 86 dogs
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www.icawc.org/tnrwww.icawc.org/tnr
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Questions so far?Questions so far?
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DUTY OF CAREDUTY OF CARE
An animal’s needs:An animal’s needs:for a suitable environmentfor a suitable environmentfor a suitable dietfor a suitable dietto be able to exhibit normal behaviour to be able to exhibit normal behaviour
patternspatternsto be housed with, or apart from, to be housed with, or apart from,
other other animalsanimalsto be protected from pain, suffering, to be protected from pain, suffering,
injury and diseaseinjury and disease
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QUALITY OF LIFEQUALITY OF LIFE
Animal’s feelingsAnimal’s feelings
Relationship to welfareRelationship to welfare
Affected by:Affected by:
HousingHousing
ExerciseExercise
CompanionshipCompanionship
FeedingFeeding
MeasurementMeasurement
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CASE STUDIES – SANCTUARYCASE STUDIES – SANCTUARY
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CASE STUDIES – SANCTUARYCASE STUDIES – SANCTUARY
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CASE STUDIES – SANCTUARYCASE STUDIES – SANCTUARY
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CASE STUDIES – SANCTUARYCASE STUDIES – SANCTUARY
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CASE STUDIES – SANCTUARYCASE STUDIES – SANCTUARY
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Questions so far?Questions so far?
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STRESS MANAGEMENTSTRESS MANAGEMENT
Mental stimulationMental stimulation
Social interaction – Social interaction –
conspecificsconspecifics
Social interaction – humansSocial interaction – humans
ToysToys
DrugsDrugs
NeutraceuticalsNeutraceuticals
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SUMMARYSUMMARY
Biosecurity – down to youBiosecurity – down to you
Population management – down to Population management – down to
your relationshipsyour relationships
Duty of care – your managementDuty of care – your management
Quality of life – needs more workQuality of life – needs more work