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you_stand_corrected t1_isxgnue wrote

Reply to comment by Petal_Chatoyance in What is the greatest difficulty in creating a vaccine against leptospirosis for humans, being that there is already a vaccine for animals? by Artreides

The animal version of the vaccine also does not convey long-lasting immunity and needs to be boosted yearly.

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EchoCyanide t1_isxlzwo wrote

You are correct! Most bacterial vaccines will not offer long lasting immunity compared to viral vaccines.

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