Final answer:
The symptoms described are consistent with the second stage of Lyme disease, caused by the bacterium Borrelia burgdorferi.
Step-by-step explanation:
The symptoms described in the question, including general malaise and arthralgia in large joints, are consistent with the second stage of Lyme disease. Lyme disease is a systemic bacterial disease caused by the spirochete bacterium Borrelia burgdorferi. The characteristic bull's-eye rash, called erythema migrans, may or may not be present, but other symptoms such as flu-like symptoms and joint pain can occur.