staphylococcus bacteria under a microscope

staphylococcus haemolyticus hominis saprophyticus staphylococci microscopic bacteriemia cells epidemic virus microscope sick structure mastitis endocarditis osteomyelitis micrograph identification healthcareassociated communityacquired resistance microorganisms grampositive pathogen medical infection bacterium bacteria aureus microbiology disease fever cocci biology skin antibiotic medicine health macro illness human life scientific pathology sepsis science background closeup sickness