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Fetal Protection Vaccines (MLV) - Lucky_P
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<blockquote data-quote="Lucky_P" data-source="post: 1057436" data-attributes="member: 12607"><p>On serologic tests... yes, probably - but if you tested paired sera, you'd likely see a stable, low titer. </p><p>On antigen test, like we conduct on ear notches or serum; probably not. </p><p>However, the ear notch can be positive in animals which are acutely infected with field strains of the virus.</p><p>Vast majority of animals that test positive on whatever PI test is being employed are true PIs, but if you're testing in the face of an 'outbreak', it's conceivable that some positives, say, in a group of stocker/feeder calves with one or more PIs in the mix could be acutely-infected animals.</p></blockquote><p></p>
[QUOTE="Lucky_P, post: 1057436, member: 12607"] On serologic tests... yes, probably - but if you tested paired sera, you'd likely see a stable, low titer. On antigen test, like we conduct on ear notches or serum; probably not. However, the ear notch can be positive in animals which are acutely infected with field strains of the virus. Vast majority of animals that test positive on whatever PI test is being employed are true PIs, but if you're testing in the face of an 'outbreak', it's conceivable that some positives, say, in a group of stocker/feeder calves with one or more PIs in the mix could be acutely-infected animals. [/QUOTE]
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