Chronic Lyme has been proven in as little as 3-4 weeks. It's all about
how wide spread the symptoms are, so it's all about
immune health and what other conditions that person may be dealing with.
I was very surprised to see that WebMD recognized this:
www.webmd.com/arthritis/tc/stages-of-lyme-disease-topic-overviewand there's this link from a much more trusted site:
www.columbia-lyme.org/patients/ld_lyme_symptoms.html