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

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a) Randomized serosurveys Statistically selected samples from relevant strata within the host populations are examined to detect serological evidence of possible virus circulation. A sampling unit is defined as a group of animals in sufficiently close contact that individuals within the group are at approximately equal risk of coming in contact with the virus if there should be an infectious animal within the group. In most circumstances, the sampling unit will be a herd which is managed as a unit by an individual or a community, But it may also be other epidemiologically appropriate groupings which are subject to regular mixing, such as all animals belonging to residents of a village. Nomadic or transhumant movements exist, the sampling unit can be the permanent bore holes, wells or water points. Sampling units should normally be defined so that their size is generally between 50 and 1,000 animals. 20
a) Randomized sero-surveys surveys (cont.) Criteria for stratification of host populations Strata are homogeneously mixing subpopulations of livestock. Any disease surveillance activities must be conducted on populations stratified according to the management system, and by herd size where this is variable. Herds, or other sampling units, should be selected by proper random statistical selection procedures from each stratum. 21
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: Surveillance results presented will
Page 23 and 24: a) Randomized sero-surveys surveys
Page 25 and 26: ) Risk-focused sero-surveillance su
Page 27 and 28: Selection of cattle and buffaloes f
Page 29 and 30: 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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