VEGFA and babesiosis: The Lyme ELISA was negative, his 31 kDa (Osp A) turned negative on the IgG Western blot, Babesia microti and Babesia duncani titers were negative, Bartonella henselae and Bartonella quintana titers were negative, and VEGF levels decreased to normal, but he had a positive Babesia FISH, consistent with active babesiosis, despite denying clinical symptoms of babesiosis.