Rinderpest surveillance for recognition of RP free ... - Middle East - OIE

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Selection of cattle and buffaloes for serosurveillance (cont.) Pragmatically, and solely for the purposes of serosurveillance, it can be accepted that: – cattle having only one pair of erupted permanent central incisor teeth are aged between 21 and 36 months (Asian buffaloes 24-48 months); – cattle having only two pairs of erupted permanent central incisor teeth are aged between 30 and 48 months (Asian buffaloes 48-60 months). – Thus selecting a cohort of cattle possessing only one pair of permanent incisors will preclude any interference from maternal immunity derived from earlier vaccination or infection and ensure that vaccinated cattle are not included if vaccination ceased 3 years or more previously (for Asian buffaloes 4 years or more). 28
Selection of cattle and buffaloes for serosurveillance (cont.) Although it is stressed here that animals with milk teeth only are not suitable for surveillance based on serology, they are of particular interest and importance in surveillance for clinical disease. After the loss of colostral immunity, by about one year of age, these are the animals which are most likely to suffer the more severe disease form and in which to look for lesions indicative of rinderpest. 29
Page 1 and 2: Rinderpest surveillance for recogni
Page 3 and 4: Introduction (cont.) 3 Rinderpest
Page 5 and 6: Principles of surveillance 1) Types
Page 7 and 8: Principles of surveillance (cont.)
Page 9 and 10: Principles of surveillance (cont.)
Page 11 and 12: Structured non-random surveillance
Page 13 and 14: Surveillance to demonstrate freedom
Page 15 and 16: GUIDELINES FOR THE SURVEILLANCE OF
Page 17 and 18: Surveillance results presented will
Page 19 and 20: Surveillance results presented will
Page 21 and 22: a) Randomized sero-surveys surveys
Page 23 and 24: a) Randomized sero-surveys surveys
Page 25 and 26: ) Risk-focused sero-surveillance su
Page 27: Selection of cattle and buffaloes f
Page 31 and 32: Evaluation of applications for accr
Page 33 and 34: Steps to be taken to declare a coun
Page 41 and 42: Other conditions that apply are Th
Page 43 and 44: The dossier shall contain: the res
Page 45 and 46: Rinderpest outbreaks after the accr
Page 47 and 48: In the event that satisfactory evid

Rinderpest surveillance for recognition of RP free ... - Middle East - OIE

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