[raesene9]

LYMErix suffered from actual or imagined side-effects that led to lawsuits, which were a factor in GSK discontinuing it. From https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2870557/

"Spawned by the press coverage of vaccine risks and the ongoing litigation, vaccine sales fell off dramatically in 2001. "

there's at least one new vaccine in development http://www.valneva.com/en/rd/vla15

[jobu]

Aside from the rare negative effects, the major issues with it were the efficacy of around 80% and that it interfered with Lyme tests. (All of the people that took the vaccine test positive for Lyme Disease.) This uncertainty made it challenging to know the cause of future illness.

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And only 80% effective means you still need to take all precautions like DEET and such.