borrelia bacteria in blood, 3d . the causative agent of lyme disease and relapsing fever

bacteria bacteriemia bacterium biology blood borrelia borreliosis burgdorferi cell closeup disease epidemic erythrocyte experiment fever health human ill illness illustration infection lyme macro magnification medical medicine micro microbe microbiology microorganisms microscope microscopic organism pathology recurrentis red relapsing science scientific sepsis sick sickness smear spiral spirochaetes spirochetal spirochete threedimensional tick