Microbial Structures under Microscope

Colorized scanning electron micrographs revealing intricate details of cells and bacteria, showcasing infections and immune responses.

Foot bacteria, SEM

Colorized scanning electron micrograph of a cell (pink) infected with the Omicron strain of SARS-CoV-2 virus particles (yellow), isolated from a patient sample.

Scanning electron micrograph of methicillin-resistant Staphylococcus aureus and a dead human neutrophil. Credit: NIAID.

Colorized scanning electron micrograph of Group A Streptococcus (Streptococcus pyogenes) bacteria (teal) and a human neutrophil (purple).

Scanning electron micrograph of methicillin-resistant Staphylococcus aureus (MRSA, yellow) surrounded by cellular debris. MRSA resists treatment with many antibiotics.

Scanning electron micrograph of neutrophil ingesting methicillin-resistant Staphylococcus aureus bacteria.

Methicillin-Resistant Staphylococcus Aureus. Scanning electron micrograph (SEM) of methicillin-resistant Staphylococcus aureus bacteria (MRSA); Magnification 9560x. This strain of Gram-positif bacterium has developed wide-ranging antibiotic resistance such as methicillin, and are hospital pathogens.

Colorized scanning electron micrograph of Middle Eastern Respiratory Syndrome virus particles attached to the surface of an infected VERO E6 cell.

Foot bacteria, SEM

Scanning electron micrograph of neutrophil ingesting methicillin-resistant Staphylococcus aureus bacteria.

Scanning electron micrograph of a human neutrophil ingesting MRSA (purple).

Fecal bacteria, SEM

Transmission electron micrograph of cytomegalovirus (CMV) particles (pink) found within intracellular vesicles of an infected macrophage (purple).

Protein molecules, computer artwork.

Escherichia coli. This scanning electron micrograph (SEM) of a Escherichia coli bacterium ; Magnification 3607x. E. coli are rod-shaped Gram-negative bacteria that normally colonize the digestive tract in humans and other animals. However, some strains can produce a toxin that leads to severe illness or even death.

Colorized scanning electron micrograph of Middle Eastern Respiratory Syndrome virus particles attached to the surface of an infected VERO E6 cell.

Scanning electron micrograph of Staphylococcus aureus bacteria (gold) outside a white blood cell (blue).

Bacteria found on mobile phone, SEM

MRSA bacteria. Computer artwork of methicillin-resistant Staphylococcus aureus (MRSA) bacteria.

Kefir bacteria, SEM

Colorized scanning electron micrograph of a cell (tan) infected with SARS-CoV-2 virus particles (yellow), isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland.

Scanning electron micrograph (SEM) depicting a mass of Yersinia pestis bacteria (the cause of bubonic plague) in the foregut of the flea vector.

Colorized scanning electron micrograph of a cell (olive green) infected with a variant strain of SARS-CoV-2 virus particles (orange), isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland.

Scanning electron micrograph of Neisseria gonorrhoeae bacteria, which causes gonorrhea.

Spherical bacteria and rod-shaped bacteria inside biofilm, illustration. A biofilm is a colony of bacteria that forms a coating on a surface. Common p...

Computer illustration of Haemophilus influenzae, coccobacillus bacteria. These bacteria cause a number of disease including meningitis in children, pn...

Interaction of MRSA with a human white cell. The bacteria shown is strain MRSA252, a leading cause of hospital-associated infections in the United States and United Kingdom.

Athlete's foot fungus. Coloured scanning electron micrograph (SEM) of Malassezia sp. yeast cells on the skin of a human foot. This fungus can cause th...

Rhinosporidium seeberi parasite, illustration

Rubella virus particles on a cellular surface. Rubella disease, commonly known as German measles, is the cause of congenital rubella syndrome when infection occurs during the first weeks of pregnancy.

Anthrax bacteria. Electron micrograph of spores of Bacillus anthracis, a Gram-positive species of bacteria which is highly pathogenic and causes the disease anthrax in man.

Colorized scanning electron micrograph of a cell (purple) infected with SARS-CoV-2 virus particles (green), isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland.

Staphylococcus bacterium

Anthrax bacteria. Electron micrograph of spores of Bacillus anthracis, a Gram-positive species of bacteria which is highly pathogenic and causes the disease anthrax in man.

Scanning electron micrograph of HIV-1 budding from cultured lymphocyte. Multiple round bumps on cell surface represent sites of assembly and budding of virions

AIDS virus. Scanning electron micrograph (SEM) of human immunodeficiency virus (HIV-1) appearing as small spheres on the surface of a lymphocyte.

Bellflower pollen, SEM

Clusters of 'superbug' (MRSA) bacteria.

Mycobacterium chelonae. Scanning Electron Micrograph (SEM)of Mycobacterium chelonae, a bacterium causing postoperative wound infections in soft tissue and bone.

Cryptococcus neoformans fungus, illustration

Fallopian tube, SEM

Image of group A streptococcus bacteria.

Madurella fungi, illustration

This scanning electron microscope image shows SARS-CoV-2 (round gold particles) emerging from the surface of a cell cultured in the laboratory. SARS-CoV-2, also known as 2019-nCoV, is the virus that causes COVID-19. Image captured and colorized at Rocky Mountain Laboratories in Hamilton, Montana. Credit: NIAID

Protein molecules, computer artwork.

Staphylococcus aureus bacteria infected bone (osteomyelitis), computer illustration. Ostemoyelitis is an infection of bone or bone marrow, often cause...

Colorized scanning electron micrograph of a cell (blue) heavily infected with SARS-CoV-2 virus particles (red), isolated from a patient sample. Image requested from the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland.

Blastomyces fungus, illustration

Colorized scanning electron micrograph of red blood cell infected with malaria parasites (teal). The small bumps on the infected cell show how the parasite remodels its host cell by forming protrusions called 'knobs' on the surface, enabling it to avoid destruction and cause inflammation. Uninfected cells (pink) have smoother surfaces.

Protein molecules, computer artwork.

Colorized scanning electron micrograph of a VERO E6 cell (purple) exhibiting elongated cell projections and signs of apoptosis, after infection with SARS-COV-2 virus particles (pink), which were isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. Credit: NIAID.

Streptococcus Pyogenes

Progesterone. SEM (Scanning Electron Microscope)

Colorized scanning electron micrograph of a cell showing morphological signs of apoptosis, infected with SARS-COV-2 virus particles (orange), isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. Credit: NIAID.

Colorized transmission electron micrograph of monkeypox virus particles (orange) found within an infected cell (green), cultured in the laboratory

Colorized scanning electron micrograph of an apoptotic cell (blue) infected with SARS-COV-2 virus particles (yellow), isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. Credit: NIAID.

Kefir bacteria, SEM

Red blood cells

Scanning electron micrograph of a clump of Staphylococcus epidermidis bacteria in the extracellular matrix, which connects cells and tissue.

Group of vibrio cholerae bacteria which causes cholera.

Coloured scanning electron micrograph (SEM) of Oral bacterium, Streptococcus mutans with surrounding dextran polysaccharide mucilage (glucan). S. muta...

Protein molecules, computer artwork.

Scanning Electron Micrograph of HIV Virions

Streptococcus pyogenes bacteria, illustration

Linalool molecule, illustration

Scanning electron micrograph (SEM) of malignant B-cell lymphocytes seen in Burkitt's lymphoma. Magnification x4000.

Hyaline cartilage, SEM

Vancomycin Resistant Enterococcus. Color enhanced scanning electron micrograph of Vancomycin Resistant Enterococci (VRE). This strain of enterococcus bacteria is resistant to the antibiotic vancomycin, known as Vancomycin Resistant Enterococci. Illness due to VRE infections in healthy people is rare. Common infections caused by enterococci are urinary tract inections and wound infections.

This is a scanning electron micrograph showing the epidermal hair entanglement on the surface of a red raspberry drupelet. The red raspberry is known to harbor various strains of parasites, i.e. Cylospora, and bacteria known to cause foodborne illnesses o

This colorized scanning electron micrograph (SEM) depicted numerous clumps of methicillin-resistant Staphylococcus aureus bacteria, commonly referred to by the acronym, MRSA, Magnified 4780x. Recently recognized outbreaks, or clusters of MRSA in community settings have been associated with strains that have some unique microbiologic and genetic properties, compared with the traditional hospital-based MRSA strains, which suggests some biologic properties, eg virulence factors like toxins, may allow the community strains to spread more easily, or cause more skin disease.

Scanning electron micrograph of a laboratory-grown potable water biofilm, with the presence of Hartmanella vermiformis cysts. Aquatic bacteria were grown as biofilm on steel for one week. Hartmanella vermiformis protozoans were then added, which phagocytized the bacteria, that multiplied within vesicles and became cysts in which the bacteria will live until they rupture. See image n1313705 on the site.

Kidney glomerulus, SEM

Parasitic amoeba (Entamoeba histolytica) engulfing red blood cells, computer illustration. This single-celled organism causes amoebic dysentery and ul...

Microscopic view of floating influenza virus cells. Dangerous illness

Clusters of 'superbug' (MRSA) bacteria.

Coloured scanning electron micrograph (SEM) of Enterococcus faecalis (formerly known as Streptococcus faecalis), Gram positive, coccus prokaryote (div...

Sperm cell, SEM

Stitch. SEM (Scanning Electron Microscope) of stiches on the skin.

Coloured scanning electron micrograph (SEM) of fungal cells. The round structures are sporangia, which house the fungus' reproductive cells (spores). ...

Scanning Electron Micrograph (SEM) of methicillin-resistant Staphylococcus aureus bacteria, commonly known as MRSA

Faecal bacteria. Scanning electron micrograph (SEM) of various bacteria found in a sample of human faeces. At least 50 per cent of human faeces is mad...

Scanning electron micrograph of human respiratory syncytial virus (RSV) virions (colorized blue) and labeled with anti-RSV F protein/gold antibodies (colorized yellow) shedding from the surface of human lung epithelial A549 cells. Credit: NIAID.

Scanning electron micrograph of Crimean-Congo hemorrhagic fever (CCHF) viral particles (yellow) budding from the surface of cultured epithelial cells from a patient.

Nanostructures on vanadium, SEM

Colorized scanning electron micrograph of a cell (gray) infected with a variant strain of SARS-CoV-2 virus particles (UK B.1.1.7 green), isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland.

$Scanning electron micrograph of a murine macrophage infected with Francisella tularensis strain LVS. Macrophages were dry-fractured by touching the cell surface with cellophane tape after critical point drying to reveal intracellular bacteria. Bacteria (colorized in red) are located either in the cytosol or within a membrane-bound vacuole.$

Fungi Paracoccidioides braziliensis, illustration

Scanning electron micrograph of Salmonella Typhimurium invading a human epithelial cell.

Colorized scanning electron micrograph of monkeypox virus (green) on the surface of infected VERO E6 cells (red).

Clostridium difficile. Scanning Electron Micrograph (SEM) of Clostridium difficile bacteria. C. difficile, an anaerobic gram-positive rod, is the most frequent cause of antibiotic-associated diarrhea (AAC).

Colorized scanning electron micrograph of Ebola virus particles (blue) found both as extracellular particles and budding particles from chronically infected African green monkey kidney cells (brown). Image captured and color-enhanced at the NIAID Integrated Research Facility in Ft. Detrick, Maryland.

Microstructures on nickel, SEM

Leaf, x500 magnification

Bacteria and yeast. Coloured scanning electron micrograph (SEM) of bacteria (red) and yeast. In many environments, bacteria and fungi coexist and inte...

of 2