alt Hacker NewsAFAIK there was a Lyme disease vaccine, but was discontinued, probably because it wasn't effective enough, I don't remember the details.
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gramie • yesterday at 6:30 PM
There has been a vaccine for dogs and cats for a while now, not sure why it hasn't been released for humans yet. Lyme can be really horrible. Some people we know have a 30-something son who was very active (camping, hiking, rock climbing, etc.) until he was bitten by a tick. Now he's quadriplegic.
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SoftTalker • yesterday at 6:38 PM
Typically because it's rare enough that the cost/side-effect risk of the vaccine isn't judged to be worth it.
Humans generally aren't vaccinated for Rabies either, unless you are e.g. a veterinarian who might have a higher chance of exposure to it.
https://pmc.ncbi.nlm.nih.gov/articles/PMC2870557/