This is a couple years old but I thought it was interesting:
Bel Marr Health Article by Devon Andrewww.belmarrahealth.com/lyme-disease-can-prevent-the-immune-system-from-developing-lasting-immunity-study/
Lyme disease can prevent the immune system from developing lasting immunity, according to research. The findings come from the researchers at the University of California who found that Lyme disease can trick the animal’s immune system, which fails to send an immune response or develop lasting immunity to the disease as a result. The findings may help explain why some human patients are susceptible to recurrent infections from the same strain of bacteria. It also suggests why blood tests may not be effective at uncovering Lyme disease if the patient has already been exposed.