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AIDS VIRUS INFECTION, TEM. HIV virus burgeonning from the membrane of a cell colorized TEM.





MICROCOCCUS LUTEUS. MICROCOCCUS LUTEUS Micrococcus luteus, scanning electron micrograph colorized SEM, x 21 930 Micrococcus l...
MICROCOCCUS LUTEUS. MICROCOCCUS LUTEUS Micrococcus luteus, scanning electron micrograph colorized SEM, x 21 930 Micrococcus luteus is Gram_positive coccus, strict aerobe, usually present under the form of diplococci pairs, tetrads four and sarcinas eight. This bacterium is a saprotroph feeding on decaying organic matter and not pathogenic for mankind except for immunocompromised persons affected by AIDS. Micrococcus luteus regrouping the old species Micrococcus flavus, Sarcina lutea and Sarcina





AVIAN INFLUENZA VIRUS. AVIAN INFLUENZA VIRUS Influenza virus H5N1 _ Orthomyxovirus _ Influenza virus. Influenza virus H5N1 av...
AVIAN INFLUENZA VIRUS. AVIAN INFLUENZA VIRUS Influenza virus H5N1 _ Orthomyxovirus _ Influenza virus. Influenza virus H5N1 avian pest or avian flu is the cause of a severe infectious and contagious respiratory disease. Image made according to a view under transmission electron microscope, viral diameter 100 nm.





VIROLOGY LABORATORY. VIROLOGY LABORATORY Photo essay from laboratory. Institut Pasteur. Department of virology. Unit of molec...
VIROLOGY LABORATORY. VIROLOGY LABORATORY Photo essay from laboratory. Institut Pasteur. Department of virology. Unit of molecular genetics of Bunyaviridae. Group entomology Mosquito team. Research on the transmission of Chikungunya virus to mosquitoes Aedes albopictus and Aedes aegypti. Here, titration of the Chikungunya virus by counting the lysis plaques formed on the Vero cells. The Vero epithelial cell line is issue from the kidney of a vervet monkey Chlorocebus aethiops , it is used in the





TRICHOMONAS VAGINALIS. TRICHOMONAS VAGINALIS Trichomonas vaginalis optical microscopy, x 600. Parasite responsible for sexual...
TRICHOMONAS VAGINALIS. TRICHOMONAS VAGINALIS Trichomonas vaginalis optical microscopy, x 600. Parasite responsible for sexually transmitted diseases vaginitis, urethritis, trichomoniasis.





Structure of the Rotavirus (3GZU). Rotavirus is the most common cause of severe diarrhoea among infants and young children an...
Structure of the Rotavirus (3GZU). Rotavirus is the most common cause of severe diarrhoea among infants and young children and is one of several viruses that cause infections often called stomach flu.





Outlet of the Pinwheel Geyser, Porcelain Basin, Norris Geyser Basin, colored thermophilic bacteria, microorganisms, geysers, ...
Outlet of the Pinwheel Geyser, Porcelain Basin, Norris Geyser Basin, colored thermophilic bacteria, microorganisms, geysers, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA





SALMONELLOSIS, BILHARZIASIS. SALMONELLOSIS, BILHARZIASIS Man can be infected by parasites living in fresh water. Here, after ...
SALMONELLOSIS, BILHARZIASIS. SALMONELLOSIS, BILHARZIASIS Man can be infected by parasites living in fresh water. Here, after migrating through the body, a larva of a water fluke called Schistosoma bilharziasis has developed into an adult and deposited a large spiked egg in the bladder, leading to chronic irritation and inflammation. The diseased bladder is then more susceptible to infection by common germs such as the Salmonella seen here. SEM 7800x.





Detailed view of the discoloration caused by bacteria and algae on a geyser, Geyser Hill, Old Faithful Area, Yellowstone Nati...
Detailed view of the discoloration caused by bacteria and algae on a geyser, Geyser Hill, Old Faithful Area, Yellowstone National Park, Wyoming, USA





LABORATORY WORKER. LABORATORY WORKER Photo essay. Chatellerault Hospital (Camille Guérin Hospital) in the French department o...
LABORATORY WORKER. LABORATORY WORKER Photo essay. Chatellerault Hospital (Camille Guérin Hospital) in the French department of Vienne. Bacteriology laboratory: bacteria cultures.





TUBERCULOSIS IN THE BONES, SCAN. TUBERCULOSIS IN THE BONES, SCAN Tuberculous osteitis of femur head.





YELLOW FEVER VIRUS. YELLOW FEVER VIRUS An electron micrograph of Yellow Fever Virus virions. Virions are spheroidal, uniform ...
YELLOW FEVER VIRUS. YELLOW FEVER VIRUS An electron micrograph of Yellow Fever Virus virions. Virions are spheroidal, uniform in shape and are 40-60nm in diameter. The name ´Yellow Fever´ is due to the ensuing jaundice that affects some patients. The vector is the Aedes aegypti or Haemagogus spp. mosquito.





NORWALK VIRUS. NORWALK VIRUS An electron micrograph of the Norwalk Virus, with 27-32nm-sized viral particles. Norwalk viruses...
NORWALK VIRUS. NORWALK VIRUS An electron micrograph of the Norwalk Virus, with 27-32nm-sized viral particles. Norwalk viruses (and related caliciviruses) are important causes of nonbacterial gastroenteritis in the United States. An estimated 181,000 cases of this type of food poisoning occur annually.





Structure of Human Rhinovirus (PDB 4RHV). Rhinoviruses are the most common viral infective agents in humans and are the main ...
Structure of Human Rhinovirus (PDB 4RHV). Rhinoviruses are the most common viral infective agents in humans and are the main cause of the common cold.





MUMPS VIRUS. MUMPS VIRUS Electron micrograph of the Mumps virus. The mumps virus is a member of the family of Paramyxoviridae...
MUMPS VIRUS. MUMPS VIRUS Electron micrograph of the Mumps virus. The mumps virus is a member of the family of Paramyxoviridae, and is enveloped by a helical ribonucleic-protein capsid, which has a herring-bone-like appearance.





YERSINIA PESTIS. YERSINIA PESTIS Yersinia pestis bacteria causes bubonic plague in animals and humans and usually is transmit...
YERSINIA PESTIS. YERSINIA PESTIS Yersinia pestis bacteria causes bubonic plague in animals and humans and usually is transmitted by the bite of infected rat fleas. Illustration based on light microscope image at 1000x.





BACTERIOLOGY. BACTERIOLOGY Petri dishes and bacteriological identification plate. Vitek card BioMérieux is a bacteriological ...
BACTERIOLOGY. BACTERIOLOGY Petri dishes and bacteriological identification plate. Vitek card BioMérieux is a bacteriological identification plate enabling the identification of the bacterium in the sample blood, urine and saliva and the execution of the antimicrobial susceptibility test by an automaton.





HEPATITIS VIRUS, TEM. Hepatitis virus colorized TEM. The type of hepatitis virus is unknown. This transmission electron micro...
HEPATITIS VIRUS, TEM. Hepatitis virus colorized TEM. The type of hepatitis virus is unknown. This transmission electron micrograph TEM revealed numerous hepatitis virions, of an unknown strain of the organism. In the United States, viral hepatitis is an important public health problem because it causes serious illness, it affects millions, and it has a close connection with HIV. There are five identified types of viral hepatitis and each one is caused by a different virus. In the United States,





REOVIRUS. REOVIRUS Transmission electron micrograph of reovirus type 3. Both inner and outer capsid shells are present. Some ...
REOVIRUS. REOVIRUS Transmission electron micrograph of reovirus type 3. Both inner and outer capsid shells are present. Some virions are penetrated by negative stain.





VIBRIO VULNIFICUS. VIBRIO VULNIFICUS This scanning electron micrograph (SEM) depicts a flagellated Vibrio vulnificus bacteriu...
VIBRIO VULNIFICUS. VIBRIO VULNIFICUS This scanning electron micrograph (SEM) depicts a flagellated Vibrio vulnificus bacterium, Mag. 13184x. Vibrio vulnificus is a bacterium in the same family as those that cause cholera. It normally lives in warm seawater and is part of a group of vibrios that are called ´halophilic´ because they require salt. V. vulnificus can cause disease in those who eat contaminated seafood or have an open wound that is exposed to contaminated seawater. Among healthy p





MYCOBACTERIUM TUBERCULOSIS. MYCOBACTERIUM TUBERCULOSIS Koch’s bacilli Mycobacterium tuberculosis, responsible for tuberculosi...
MYCOBACTERIUM TUBERCULOSIS. MYCOBACTERIUM TUBERCULOSIS Koch’s bacilli Mycobacterium tuberculosis, responsible for tuberculosis. Image made according to a view under optical microscope.





ASPERGILLUS NIGER. ASPERGILLUS NIGER Cultured Aspergillus niger on diluted Sabouraud medium.





AIDS VIRUS. AIDS VIRUS HIV virus, which causes AIDS. HIV is a retrovirus with a diameter of 100 nm. Here, genetic material re...
AIDS VIRUS. AIDS VIRUS HIV virus, which causes AIDS. HIV is a retrovirus with a diameter of 100 nm. Here, genetic material resembles a cone in center of virus.





LABORATORY WORKER. LABORATORY WORKER Photo essay. Chatellerault Hospital (Camille Guérin Hospital) in the French department o...
LABORATORY WORKER. LABORATORY WORKER Photo essay. Chatellerault Hospital (Camille Guérin Hospital) in the French department of Vienne. Bacteriology laboratory: bacteria cultures.





GIARDIA LAMBLIA. GIARDIA LAMBLIA Giardia lamblia trophozoite, colorized SEM. Giardia lamblia also named Giardia intestinalis ...
GIARDIA LAMBLIA. GIARDIA LAMBLIA Giardia lamblia trophozoite, colorized SEM. Giardia lamblia also named Giardia intestinalis is a flagellate protozoa, strict anaerobe, parasite of the intestine in mankind and numerous mammals. It transmits giardiasis. Giardia lamblia Giardia Hexamitidae Diplomonadida Mastigophora Sarcomastigophora Protozoan Protista. This scanning electron micrograph SEM revealed some of the external ultrastructural details displayed by a flagellated Giardia lamblia proto





ARTHRODERMAGRUBYI. ARTHRODERMAGRUBYI ThismicrographrevealsspiralsandmacroconidiafromtheedgeofanimmaturecleistotheciumoftheArt...
ARTHRODERMAGRUBYI. ARTHRODERMAGRUBYI ThismicrographrevealsspiralsandmacroconidiafromtheedgeofanimmaturecleistotheciumoftheArthrodermagrubyifungus ManyArthrodermaspp offungiarecoprophilous,ordung-inhabiting,andarecommonlyassociatedwithvertebrateanimalsasskinparasites,livingoffdiscardedskinfragments,hairorfeathers





Structure of the Norwalk virus (1HIM), an RNA virus from the family Caliciviridae and the major cause of epidemic gastroenter...
Structure of the Norwalk virus (1HIM), an RNA virus from the family Caliciviridae and the major cause of epidemic gastroenteritis in humans.





STAPHYLOCOCCUS AUREUS. STAPHYLOCOCCUS AUREUS Methicillin resistant Staphylococcus aureus (MRSA) bacteria. This scanning elect...
STAPHYLOCOCCUS AUREUS. STAPHYLOCOCCUS AUREUS Methicillin resistant Staphylococcus aureus (MRSA) bacteria. This scanning electron micrograph depicts a grouping of methicillin resistant Staphylococcus aureus (MRSA) bacteria. These S. aureus bacteria are methicillin-resistant, and are from one of the first isolates in the U.S. that showed increased resistance to vancomycin as well. Note the increase in cell wall material seen as clumps on the organisms’ surface.





A close up of a macrophage cell and bacteria. Macrophages are phagocytes and their function is involved in both innate immuni...
A close up of a macrophage cell and bacteria. Macrophages are phagocytes and their function is involved in both innate immunity as well as adaptive immunity.





PICORNAVIRUS. PICORNAVIRUS Picornavirus, RNA virus, including rhinoviruses and enteroviruses, responsible for common colds an...
PICORNAVIRUS. PICORNAVIRUS Picornavirus, RNA virus, including rhinoviruses and enteroviruses, responsible for common colds and gastroenterites, and aphthoviruses transmitting foot_and_mouth disease _ Image made according to a view under transmission electron microscope, viral diameter 30 to 40 nm.





INFLUENZA VIRUS. INFLUENZA VIRUS Influenza virus. Member of the orthomyxoviridae family, this is the same type of virus as th...
INFLUENZA VIRUS. INFLUENZA VIRUS Influenza virus. Member of the orthomyxoviridae family, this is the same type of virus as the avian influenza strain. The flu virus causes the contagious respiratory infection and measures 100 nanometers in diameter on average. Viral particles evolve from one localized, seasonal forms to another, occasionally causing international epidemics.





RABIES VIRUS. RABIES VIRUS This electron micrograph shows the rabies virus, as well as Negri bodies, or cellular inclusions.





STREPTOCOCCUS PNEUMONIAE. STREPTOCOCCUS PNEUMONIAE Scanning Electron Micrograph of Streptococcus pneumoniae.





VARICELLA HERPES ZOSTER VIRUS. VARICELLA HERPES ZOSTER VIRUS Electron micrograph of a Varicella (Chickenpox) Virus. Varicella...
VARICELLA HERPES ZOSTER VIRUS. VARICELLA HERPES ZOSTER VIRUS Electron micrograph of a Varicella (Chickenpox) Virus. Varicella or Chickenpox, is an infectious disease caused by the varicella-zoster virus, which results in a blister-like rash, itching, tiredness and fever.





HEPATITIS B VIRUS. HEPATITIS B VIRUS This electron micrograph reveals the presence of hepatitis-B virus HBV ´Dane particles´,...
HEPATITIS B VIRUS. HEPATITIS B VIRUS This electron micrograph reveals the presence of hepatitis-B virus HBV ´Dane particles´, or virions.The infective hepatitis-B (HBV), virions are also known as Dane particles. These particles measure 42nm in their overall diameter, and contain a DNA-based core that is 27nm in diameter.





PETRI DISH. PETRI DISH Photo essay. Chatellerault Hospital (Camille Guérin Hospital) in the French department of Vienne. Bact...
PETRI DISH. PETRI DISH Photo essay. Chatellerault Hospital (Camille Guérin Hospital) in the French department of Vienne. Bacteriology laboratory: bacteria culture.





Distillery Laphroaig uses stainless steel instead of oak wood for the tuns Isle of Islay, Scotland





Structure of the Norwalk virus (1HIM), an RNA virus from the family Caliciviridae and the major cause of epidemic gastroenter...
Structure of the Norwalk virus (1HIM), an RNA virus from the family Caliciviridae and the major cause of epidemic gastroenteritis in humans.





PETRI DISH. PETRI DISH Photo essay from laboratory. Hospital of Meaux 77, France. Laboratory of bacteriology. Research of ger...
PETRI DISH. PETRI DISH Photo essay from laboratory. Hospital of Meaux 77, France. Laboratory of bacteriology. Research of germes in the stools.





STAPHYLOCOCCUS AUREUS. STAPHYLOCOCCUS AUREUS Staphylococcus aureus in biofilm, coming from the inside of a permanent urinary ...
STAPHYLOCOCCUS AUREUS. STAPHYLOCOCCUS AUREUS Staphylococcus aureus in biofilm, coming from the inside of a permanent urinary catheter colorized SEM, x 2 363. A biofilm is a group of micro_organisms binding between themselves and at the surface through an adhesive matrix, that protect and make them extremely resistant. Staphylococcus aureus Staphylococcus Staphylococcaceae Bacillales Firmicutes Bacterium. This highly magnified electron micrograph depicted numbers of Staphylococcus aureus bac





CORONAVIRUS. CORONAVIRUS The coronaviruses owe their name to the the crown-like projections, visible under microscope, that e...
CORONAVIRUS. CORONAVIRUS The coronaviruses owe their name to the the crown-like projections, visible under microscope, that encircle the capsid. The coronaviruses are responsible for respiratory ailments and gastro-enteritis. The virus responsible for SARS belongs to this family.





STREPTOCOCCUS PYOGENES. STREPTOCOCCUS PYOGENES Streptococci are potentially pathogenic Gram-positive micro-organisms growing ...
STREPTOCOCCUS PYOGENES. STREPTOCOCCUS PYOGENES Streptococci are potentially pathogenic Gram-positive micro-organisms growing in pairs or chains. They occur as normal hosts in man. Streptococci are divided into four groups, A, B, C and D, according to the antigenic properties of the polysaccharides on their surface. They are normally found in the human alimentary tract but can cause severe infection, including scarlet fever and erysipelas. SEM of Streptococcus A or Streptococcus pyogenes (300





Cryo-em structure of group B coxsackievirus m strain with it's cellular receptor (PDB 1JEW). Group B coxsackieviruses tend to...
Cryo-em structure of group B coxsackievirus m strain with it's cellular receptor (PDB 1JEW). Group B coxsackieviruses tend to infect the heart, pleura, pancreas, and liver, causing pleurodynia, myocarditis, pericarditis, and hepatitis.





COAGULASE TEST. Photo essay in a laboratory. Saint Louis Hospital, Paris, France. Department of bacteriology of Dr François S...
COAGULASE TEST. Photo essay in a laboratory. Saint Louis Hospital, Paris, France. Department of bacteriology of Dr François Simon. A coagulase test is undertaken to identify the golden staph Staphylococcus aureus. The coagulase is a specific enzyme of the golden staph, catalyzing the coagulation of the blood conversion of fibrinogen into fibrin. The reactive agent containing fibrinogen is put in contact with the bacterium to be identified , in case of agglutination, it is a golden staph.





WORLD COOKERY. WORLD COOKERY Salad of soybeans, sprouts and seeds, noodles and raw vegetables in Beijing. Chinese restaurant.





New leaves sprouting from a burnt eucalyptus tree 6 weeks after the Black Saturday bushfires in 2009, Victoria, Australia





HEPATITIS B VIRUS. HEPATITIS B VIRUS This electron micrograph reveals the presence of hepatitis-B virus HBV ´Dane particles´,...
HEPATITIS B VIRUS. HEPATITIS B VIRUS This electron micrograph reveals the presence of hepatitis-B virus HBV ´Dane particles´, or virions.The infective hepatitis-B (HBV), virions are also known as Dane particles. These particles measure 42nm in their overall diameter, and contain a DNA-based core that is 27nm in diameter.





Echinus Geyser with the world´s highest acidity, Back Basin, Norris Geyser Basin, geysers, colored thermophilic bacteria, mic...
Echinus Geyser with the world´s highest acidity, Back Basin, Norris Geyser Basin, geysers, colored thermophilic bacteria, microorganisms, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA





HEPATITIS B VIRUS. HEPATITIS B VIRUS Hepatitis B virus. Approximately 10% of people infected with the Hepatitis B virus becom...
HEPATITIS B VIRUS. HEPATITIS B VIRUS Hepatitis B virus. Approximately 10% of people infected with the Hepatitis B virus become ´carriers´ and can spread the disease to others for months, for years, or even for life. Approximately 70% of carriers develop a life-long infection but never develop symptoms. The other 30% develop a chronic, life-long infection, increasing their chance of permanent liver damage, including cirrhosis (scarring of the liver) and liver cancer. The hepatitis B virus, whi





GIARDIA LAMBLIA. GIARDIA LAMBLIA Giardia lamblia trophozoite, colorized SEM. Giardia lamblia also named Giardia intestinalis ...
GIARDIA LAMBLIA. GIARDIA LAMBLIA Giardia lamblia trophozoite, colorized SEM. Giardia lamblia also named Giardia intestinalis is a flagellate protozoa, strict anaerobe, parasite of the intestine in mankind and numerous mammals. It transmits giardiasis. Giardia lamblia Giardia Hexamitidae Diplomonadida Mastigophora Sarcomastigophora Protozoan Protista. This scanning electron micrograph SEM revealed some of the external ultrastructural details displayed by a flagellated Giardia lamblia proto





HEPATITIS C VIRUS. HEPATITIS C VIRUS Surface: membrane and transmembrane protein (blue sphere). Interior:Single stranded RNA ...
HEPATITIS C VIRUS. HEPATITIS C VIRUS Surface: membrane and transmembrane protein (blue sphere). Interior:Single stranded RNA (in yellow) and nucleocapsid (in blue).





ROTAVIRUS. ROTAVIRUS The rotaviruses gets their name from their wheel-shaped form. Members of the reoviridae family, rotaviru...
ROTAVIRUS. ROTAVIRUS The rotaviruses gets their name from their wheel-shaped form. Members of the reoviridae family, rotaviruses cause diarrhea and sometimes respiratory tract infections in infants. These viruses contain bicatenary RNA, do not have an envelope and measure 60 – 75 nanometers in diameter. Transmission electron microscopy.





LABORATORY WORKER. LABORATORY WORKER Photo essay. Chatellerault Hospital (Camille Guérin Hospital) in the French department o...
LABORATORY WORKER. LABORATORY WORKER Photo essay. Chatellerault Hospital (Camille Guérin Hospital) in the French department of Vienne. Bacteriology laboratory: bacteria culture.





PETRI DISH. PETRI DISH Photo essay in a laboratory. Saint Louis Hospital, Paris, France. Department of bacteriology of Dr Fra...
PETRI DISH. PETRI DISH Photo essay in a laboratory. Saint Louis Hospital, Paris, France. Department of bacteriology of Dr François Simon. Culture of bacteria.





2 FLASKS OF A COMPARATIVE MEDICAL STERILITY TEST, , 2 FLASKS OF A COMPARATIVE MEDICAL STERILITY TEST





ACTINOMYCES ODONTOLYTICUS. ACTINOMYCES ODONTOLYTICUS Actinomyces are filamentous bacteria pathogenic from humans. Despite the...
ACTINOMYCES ODONTOLYTICUS. ACTINOMYCES ODONTOLYTICUS Actinomyces are filamentous bacteria pathogenic from humans. Despite their name, actinomyces are not fungi and are insensitive to anti-fungal agents. Actinomycoses (actinomyces infections) can involve the skin, bone or even visceral organs.





Opalescent Pool, geyser, drainage area with coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Ba...
Opalescent Pool, geyser, drainage area with coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA





PLANKTON, SEM. PLANKTON, SEM Areolae on centric diatoms viewed in valve view under SEM. Magnification: 15000x.





SALMONELLA INFANTIS. SALMONELLA INFANTIS This scanning electron micrograph (SEM) depicts a number of rod-shaped, motile, Gram...
SALMONELLA INFANTIS. SALMONELLA INFANTIS This scanning electron micrograph (SEM) depicts a number of rod-shaped, motile, Gram-negative Salmonella infantis bacteria, Magnification 2255x. Clinical features of ´Salmonellosis´ include fever, abdominal cramps, and diarrhea, which is sometimes bloody. Occasionally these bacteria can establish a localized infection such as septic arthritis, or can even progress to sepsis, which occurs due to the systemic spread of these pathogens. The etiologic age





MACHUPO VIRUS. MACHUPO VIRUS Electron photomicrograph of the Machupo Virus. Machupo Virus is a member of the Arenavirus famil...
MACHUPO VIRUS. MACHUPO VIRUS Electron photomicrograph of the Machupo Virus. Machupo Virus is a member of the Arenavirus family, isolated in the Beni province of Bolivia in 1963, It is the agent of Bolivian hemorrhagic fever.





MARBURG VIRUS. MARBURG VIRUS Electron micrograph of the Marburg virus. Marburg virus, first recognized in 1967, causes a seve...
MARBURG VIRUS. MARBURG VIRUS Electron micrograph of the Marburg virus. Marburg virus, first recognized in 1967, causes a severe type of hemorrhagic fever, which affects humans, as well as non-human primates.





SALMONELLA TYPHI. SALMONELLA TYPHI Scanning electron micrograph view of the cuticular surface of Schistosoma mansoni, a trema...
SALMONELLA TYPHI. SALMONELLA TYPHI Scanning electron micrograph view of the cuticular surface of Schistosoma mansoni, a trematode parasite, shown with attached Salmonella typhi, a gram-negative, flagellated, facultatively anaerobic rod prokarote that causes typhoid fever, mag. 11,000x (at 24 x 36mm). Both are pathogenic in humans.





LISTERIA. LISTERIA Listeria is a Gram-positive germ seen in pairs or chains under the microscope that is common in veterinary...
LISTERIA. LISTERIA Listeria is a Gram-positive germ seen in pairs or chains under the microscope that is common in veterinary medicine. In humans they can cause a disease called listeriosis, generally in older persons or subjects with a depressed immune response. Listeriosis can involve septicemia and neuromeningeal manifestations. Scan electron microscopy x 6000.





A culture of Salmonella bacteria on a plane surface. Salmonella is a genus of rod-shaped, Gram-negative bacteria.





PSEUDOMONAS AERUGINOSA. PSEUDOMONAS AERUGINOSA Scanning Electron Micrograph. This bacillus causes serious nosocomial infectio...
PSEUDOMONAS AERUGINOSA. PSEUDOMONAS AERUGINOSA Scanning Electron Micrograph. This bacillus causes serious nosocomial infections.





Structure of Cucumber Mosaic Virus (CMV) (PDB 1F15) from the family Bromoviridae. The virus has been found to infect a great ...
Structure of Cucumber Mosaic Virus (CMV) (PDB 1F15) from the family Bromoviridae. The virus has been found to infect a great variety of plants including squash, melons, peppers, beans, tomatoes, lettuce, spinach and beets.





LISTERIA. LISTERIA Electron micrograph of a Listeria bacterium in tissue. Listeria monocytogenes is the infectious agent resp...
LISTERIA. LISTERIA Electron micrograph of a Listeria bacterium in tissue. Listeria monocytogenes is the infectious agent responsible for the food borne illness Listeriosis. In the United States, an estimated 2,500 persons become seriously ill with listeriosis each year. Of these, 500 die.





STAPHYLOCOCCUS AUREUS. STAPHYLOCOCCUS AUREUS Methicillin resistant Staphylococcus aureus (MRSA) bacteria. This scanning elect...
STAPHYLOCOCCUS AUREUS. STAPHYLOCOCCUS AUREUS Methicillin resistant Staphylococcus aureus (MRSA) bacteria. This scanning electron micrograph depicts a grouping of methicillin resistant Staphylococcus aureus (MRSA) bacteria. These S. aureus bacteria are methicillin-resistant, and are from one of the first isolates in the U.S. that showed increased resistance to vancomycin as well. Note the increase in cell wall material seen as clumps on the organisms’ surface.





HERPES ZOSTER. HERPES ZOSTER Herpes zoster, commonly known as shingles, is an infectious disease caused by varicella zoster v...
HERPES ZOSTER. HERPES ZOSTER Herpes zoster, commonly known as shingles, is an infectious disease caused by varicella zoster virus (VZV). It causes crops of red lesions which develop over the pathways of certain sensory nerve fibres.





Lettering EHEC under a magnifying glass, symbolic image for search for the carrier of the EHEC pathogen





Structure of Sindbis Virus (PDB 1LD4). SINV is a member of the Togaviridae family, in the alphavirus subfamily. In humans the...
Structure of Sindbis Virus (PDB 1LD4). SINV is a member of the Togaviridae family, in the alphavirus subfamily. In humans the virus is transmitted from mosquito bites and causes sindbis fever.





SPANISH FLU INFECTION. Virus H1N1, responsible for the deadly pandemy of Spanish flu in 1918 colorized TEM. succeded in rebui...
SPANISH FLU INFECTION. Virus H1N1, responsible for the deadly pandemy of Spanish flu in 1918 colorized TEM. succeded in rebuilding this virus from an avian influenza transmissible between human beings. His study will permit to understand better the modes of transmission of the virus H5N1 of the current avian influenza virus. Spanish flu virus, as all Influenza A viruses, is a pleiomorphic virus, which means that it can present under different forms according to the conditions. The virus H1N1 can





VACCINIA. VACCINIA Electron micrograph of a Vaccinia Virus. Vaccinia virus is normally confined to cattle, but is conveyed to...
VACCINIA. VACCINIA Electron micrograph of a Vaccinia Virus. Vaccinia virus is normally confined to cattle, but is conveyed to humans through vaccination, thereby, imparting immunity to the smallpox virus.





Structure of the Murine Polyomavirus (PDB 1SID). Polyomaviruses have been extensively studied as tumor viruses leading to fun...
Structure of the Murine Polyomavirus (PDB 1SID). Polyomaviruses have been extensively studied as tumor viruses leading to fundamental insights into carcinogenesis, DNA replication and protein processing in humans and animals.





AIDS VIRUS. AIDS VIRUS HIV virus responsible for AIDS. HIV is a retrovirus of which the diameter measures around 100_120 nm. ...
AIDS VIRUS. AIDS VIRUS HIV virus responsible for AIDS. HIV is a retrovirus of which the diameter measures around 100_120 nm. On the image we can distinguish a group of various viruses of which the genetic material RNA is visible in shape of cone in the virus. TEM view. Magnification: x250,000 when printed 13,2 x 9,3cm.





Food testing, laboratory technician examining minced meat samples, preparing them for tests for exposure to bacteria, pathoge...
Food testing, laboratory technician examining minced meat samples, preparing them for tests for exposure to bacteria, pathogens or environmental toxins





REOVIRUS. REOVIRUS Reovirus, RNA virus, it is responsible for respiratory and gastric infections little pathogenic to mankind...
REOVIRUS. REOVIRUS Reovirus, RNA virus, it is responsible for respiratory and gastric infections little pathogenic to mankind _ Image made according to a view under transmission electron microscope.





Palette Spring Terrace, Lower Terraces, limestone sinter terraces, geysers, hot springs, colourful thermophilic bacteria, Mam...
Palette Spring Terrace, Lower Terraces, limestone sinter terraces, geysers, hot springs, colourful thermophilic bacteria, Mammoth Hot Springs Terraces, Yellowstone National Park, Wyoming, United States of America





GENETICS RESEARCH. GENETICS RESEARCH Photo essay. Genetics research laboratory. Gene therapy requires a gene-drug and a vecto...
GENETICS RESEARCH. GENETICS RESEARCH Photo essay. Genetics research laboratory. Gene therapy requires a gene-drug and a vector to carry it to the target cell. The study of these vectors (vectorology) has demonstrated that viruses can be useful. The pathogenic capacity of the virus is replaced by the gene-drug which is carried to the target cell by natural viral infection. Researchers are developing vectors belonging to several viral families (adenovirus, retrovirus, parvovirus, herpes viru





ORIENTIA TSUTSUGAMUSHI. Bacterium Orientia tsutsugamushi budding from its host cell peritoneal mesothelial cell, colorized TE...
ORIENTIA TSUTSUGAMUSHI. Bacterium Orientia tsutsugamushi budding from its host cell peritoneal mesothelial cell, colorized TEM. This specimen comes from the peritoneal cavity of a mouse infected experimentally to diagnose the infection of a patient. Other bacteria are visible in the cytoplasm. Orientia tsutsugamushi, formerly known as Rickettsia tsutsugamushi, is a bacterium responsible for scrub typhus or Japanese flood ever. It is a Gram negative bacillus, intracellular exclusively, that proli





BURKHOLDERIA CEPACIA. BURKHOLDERIA CEPACIA SEM of Burkholderia cepacia. This bacterium is reponsible for nosocomial infection...
BURKHOLDERIA CEPACIA. BURKHOLDERIA CEPACIA SEM of Burkholderia cepacia. This bacterium is reponsible for nosocomial infections and opportunistic diseases of fragilized persons, mainly those affected by mucoviscidosis. It is at the origin of pulmonary infections, necrosing pneumonia and septicemias. This bacterium is multiresistant to antibiotics.





ENTEROCOCCUS. ENTEROCOCCUS Vancomycin Resistant Enterococci (VRE). Scanning Electron Micrograph of Vancomycin Resistant Enter...
ENTEROCOCCUS. ENTEROCOCCUS Vancomycin Resistant Enterococci (VRE). Scanning Electron Micrograph of Vancomycin Resistant Enterococci (VRE). Illness due to VRE infections in healthy people is rare. Common infections caused by enterococci are urinary tract infections and wound infections.

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