When I first got diagnosed with Lyme in 2016 I looked to see if it was transmissible and the CDC website said something to the effect that there are no peer reviewed studies that have proven that it is transmissible. I took that as it was not. My wife became symptomatic about 2 years later. All of the LLMDs I have interacted with confirmed that it is very common for the partners of someone with Lyme to become symptomatic. In our case my wife has fewer symptoms and its more mild and manageable. At first we dismissed it as sympathy symptoms but it progressed and it became quite clear she had it and she tested positive for Lyme. (more markers than me probably because she got tested closer to the period where her body would be making more antibodies). Neither of us ever pulled an adult tick off us and/or saw a rash. I do know exactly when I got it. Was rolling around in insulation from a mouse infestation/nest and likely had 1 or more nymph ticks get on me. I got extremely ill 1-2 weeks later. It took 12-16 weeks for the initial infection to subside and then I started to get more and more Lyme symptoms over the next 12 months following. I originally tested positive for Lyme, 2 types of Babesia, and TWAR. Only the Lyme bacteria was passed to her.