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CDT Vaccination #872991

Asked June 13, 2024, 3:14 PM EDT

Hi - I was reading this great article (https://www.canr.msu.edu/sheep_goats/health/overeating-disease-in-sheep-making-sense-of-vaccination-schedules) about the CDT Vaccine for sheep and was curious about the missing cohort in your study: fully vaccinated but in boosted before lambing. Do you have information on this? I'm wondering if fully vaccinated ewes pass on the same level of protection to their offspring as boosted ewes. Unfortunately, there's no public FDA data on the trials for this vaccine (it was approved too long ago), so if you're able to point me to any information about longevity of immunity and/or the recommendation to boost fully vaccinated ewes prior to lambing, I'd greatly appreciate it Thank you!

Alger County Michigan

Expert Response

Good afternoon and thank you for reaching out.  Our sincere apologies for the delay in responding.

I'm going to recommend you connect with Dr. Ehrhardt.  Here's his contact info:
https://www.canr.msu.edu/people/richard_ehrhardt 

Best wishes,
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