[diddly]

This tick (Asian Longhorn) will suck an animal dry of blood, and reproduce asexually.  Literally the female just drops thousands of eggs which grow into new ticks.  And it's spreading across the US, found in 8 eastern states so far.

https://arstechnica.com/science/2018/08/us-invaded-by-savage-tick-that-sucks-animals-dry-spawns-without-mating/

The good? news is they aren't carrying any diseases, yet.

[diddly]

A new mRNA-based vaccine keeps ticks from latching on!  https://www.science.org/doi/10.1126/scitranslmed.abm2504

So far it's only tested in guinea pigs, but ticks are becoming a real concern (especially the ones that make you allergic to meat!) so I'm happy there's progress on protection.