3d rendering of viremia or viruses enter the bloodstream

virus inside bloodstream blood sepsis magnification vein red protein scattered virology morphology pathogen biology science shape closeup microbiology white cell vessel biological three dimensional flow infectious disease viral infection structure midair scientist molecule micro organism plasma cardiovascular system transmission entering medical condition spikes poisoning health viremia virion magnify close microscopy septicemia cells erythrocyte leukocytes microscopic molecules microorganism enter float rendering scientific contagious