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The Netherlands

The Netherlands. The anti- vaxx movement in the Netherlands - Focus on leptospirosis ( Weil’s disease ) -. Narita Burggraaff. 1st year Master student Companion Animals. Faculty of veterinary Medicine. Leptospirosis. Gram-negative spirochetes Species  S erogroups  Serovar

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The Netherlands

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  1. The Netherlands

  2. The anti-vaxxmovement in the Netherlands- Focus on leptospirosis (Weil’sdisease) - Narita Burggraaff 1st year Master student Companion Animals Faculty of veterinaryMedicine

  3. Leptospirosis Gram-negativespirochetes Species  Serogroups Serovar • 8 pathogenic species (e.g. L. icterohaemorrhagiae) • 29 serogroups, ~300 pathogenicserovars Animals species

  4. Cycle of epidemiology

  5. Zoonosis Main source of infection (small rodents) Same serovars Symptoms in incidentalhosts • Human • Dog

  6. Leptospirosis in the NL Mandatorynotifiable Important serogroupsandserovars • Icterohaemorrhagiae(serovarsIcterohaemorrhagiaeandCopenhageni) • Grippotyphosa(serovarGrippotyphosa) Prevalencein humansanddogs

  7. Prevalence in humans (NL)

  8. Prevalence in dogs (NL)

  9. Leptospirosainterrogans in the NL Serogroups of L. interrogans: • L. icterohaemorhagiae serovarIcterohaemorrhagiae: Weil’sdisease • L. canicola • L. hardjo • L. pomona • L. grippotyphosa

  10. Weil’s disease in dogs Weil’sdisease Reservoir Symptoms

  11. Dog vaccinations in the NL • CDV • HCC • CPV • Leptospirosis

  12. Vaccination of dogs against leptospirosis Bivalent vaccine: serovarsIcterohaemorrhagiaeandCanicola Annualrevaccination Currentvaccinationrate: 55%

  13. The ‘anti-vaxx’ movement in the NL Slightdecrease in vaccinationrate in dogs  Risks?

  14. Is this a problem? Subjects of discussion: Higherrisks of outbreaks Different per disease Herd immunityonly at ~70% THM: population individual

  15. Alternativesforvaccinationtopreventdisease At-risk groups Doctors andveterinarians Effective pest control Prophylactic AB?

  16. Minimizingvaccinationsbytitration? Postponement of othervaccinations or every 3 years(vaccinationguidelines)

  17. Minimizingvaccinationsbytitration? At which titer exactly? Sensitivityandreliability of testing Basic vaccinations Annualvaccinations ?

  18. Motivatingpeopletovaccinatetheir pet Systematicbehavioural change  ‘InterventionMapping’ Balancedcommunication Intervention design

  19. Conclusion .

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