Gram Positive Bacteria

Under a high magnification of 20,000X, this colorized scanning electron micrograph (SEM) revealed a small clustered group of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria. See PHIL 10585 for a black and white version of this image.Created: 2008

This illustration depicts Bacillus anthracis taken from the peritoneum using a Hiss capsule stain.Created: 1979

Under a very high magnification of 35,000X, this scanning electron micrograph (SEM) revealed a cluster of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria.Created: 2008

This photomicrograph depicted a number of Gram-positive, endospore-forming Bacillus anthracis bacteria. B. anthracis is the pathologic microorganism responsible for the disease anthrax, an acute infectious disease, which most commonly occurs in wild and domestic vertebrates (cattle, sheep, goats, camels, antelopes, and other herbivores), but it can also occur in humans when they are exposed to infected animals, or tissue from infected animals.Created: 1982

Under a moderate magnification of 2,969X, this scanning electron micrograph (SEM) revealed a number of clusters of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria. See PHIL 10591 for a colorized version of this image.Created: 2008

Under a low magnification of 76x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a dry macrofoam sponge swabs. This swab, as well as three other materials, including polyester (see PHIL 9735), rayon (see PHIL 9734) and cotton (see PHIL 9732, and 9733), were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. See PHIL 9736, 9737, 9738, 9749, 9750, and 9751, for other views of this material. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007

Under a moderately-high magnification of 6,500X, this scanning electron micrograph (SEM) revealed a cluster of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria.Created: 2008

Under a low magnification of 74x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a dry macrofoam sponge swabs. This swab, as well as three other materials, including polyester (see PHIL 9735), rayon (see PHIL 9734) and cotton (see PHIL 9732, and 9733), were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. See PHIL 9736, 9737, 9738, 9749, 9751, an 9752, for other views of this material. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007

Under a moderately-high magnification of 12,000X, this scanning electron micrograph (SEM) revealed a cluster of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria.Created: 2008

Under a low magnification of 37x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a dry macrofoam sponge swabs. This swab, as well as three other materials, including polyester (see PHIL 9735), rayon (see PHIL 9734) and cotton (see PHIL 9732, and 9733), were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. See PHIL 9736, 9737, 9738, 9750, 9751, an 9752, for other views of this material. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007

Under a moderately-high magnification of 5,000X, this scanning electron micrograph (SEM) revealed several small clusters of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria.Created: 2008

Under a low magnification of 188x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a dry macrofoam sponge swab. This swab, as well as three other materials, including polyester (see PHIL 9735), rayon (see PHIL 9734), and cotton (see PHIL 9732, 9733) were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. See PHIL 9736, and 9737 for other views of this material. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007

Under a high magnification of 20,000X, this scanning electron micrograph (SEM) revealed a small clustered group of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria. See PHIL 10586 for a colorized version of this image.Created: 2008

Under a low magnification of 37x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a dry macrofoam sponge swab. This swab, as well as three other materials, including polyester (see PHIL 9735), rayon (see PHIL 9734), and cotton (see PHIL 9732, 9733) were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. See PHIL 9736, and 9738 for other views of this material. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007

Under a very high magnification of 50,000x, this scanning electron micrograph (SEM) shows a strain of Staphylococcus aureus bacteria taken from a vancomycin intermediate resistant culture (VISA).Under SEM, one can not tell the difference between bacteria that are susceptible, or multidrug resistant, but with transmission electron microscopy (TEM), VISA isolates exhibit a thickening in the cell wall that may attribute to their reduced susceptibility to vancomycin . See PHIL 11158 for a black and white version of this image. VISA and VRSA are specific types of antimicrobial-resistant staph bacteria. While most staph bacteria are susceptible to the antimicrobial agent vancomycin some have developed resistance. VISA and VRSA cannot be successfully treated with vancomycin because these organisms are no longer susceptibile to vancomycin. However, to date, all VISA and VRSA isolates have been susceptible to other Food and Drug Administration (FDA) approved drugs.Created: 2001

Under a low magnification of 23x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a dry macrofoam sponge swab. This swab, as well as three other materials, including polyester (see PHIL 9735), rayon (see PHIL 9734), and cotton (see PHIL 9732, 9733) were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. See PHIL 9737, and 9738 for other views of this material. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created:

Under a very high magnification of 20,000x, this scanning electron micrograph (SEM) shows a strain of Staphylococcus aureus bacteria taken from a vancomycin intermediate resistant culture (VISA).Under SEM, one can not tell the difference between bacteria that are susceptible, or multidrug resistant, but with transmission electron microscopy (TEM), VISA isolates exhibit a thickening in the cell wall that may attribute to their reduced susceptibility to vancomycin . See PHIL 11156 for a black and white version of this image. VISA and VRSA are specific types of antimicrobial-resistant staph bacteria. While most staph bacteria are susceptible to the antimicrobial agent vancomycin some have developed resistance. VISA and VRSA cannot be successfully treated with vancomycin because these organisms are no longer susceptibile to vancomycin. However, to date, all VISA and VRSA isolates have been susceptible to other Food and Drug Administration (FDA) approved drugs.Created: 2001

Under a low magnification of 42x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a plain uninoculated polyester swab. This swab, as well as three other materials, including macrofoam (see PHIL 9736, 9737, 9738), rayon (see PHIL 9734), and cotton (see PHIL 9732, 9733) were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007

Under a high magnification of 10,000x, this scanning electron micrograph (SEM) shows a strain of Staphylococcus aureus bacteria taken from a vancomycin intermediate resistant culture (VISA).Under SEM, one can not tell the difference between bacteria that are susceptible, or multidrug resistant, but with transmission electron microscopy (TEM), at least with VISA isolates one can see a thickening in the cell wall that may attribute to their reduced susceptibility to vancomycin . See PHIL 11154 for a black and white version of this image.Created: 2001

Under a low magnification of 41x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a plain uninoculated rayon swab. This swab, as well as three other materials, including macrofoam (see PHIL 9736, 9737, 9738), polyester (see PHIL 9735), and cotton (see PHIL 9732, 9733) were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007

Under a high magnification of 10,000x, this scanning electron micrograph (SEM) shows a strain of Staphylococcus aureus bacteria taken from a vancomycin intermediate resistant culture (VISA).Under SEM, one can not tell the difference between bacteria that are susceptible, or multidrug resistant, but with transmission electron microscopy (TEM), at least with VISA isolates one can see a thickening in the cell wall that may attribute to their reduced susceptibility to vancomycin . See PHIL 6486 for a black and white version of this image.Created: 2001

Under a low magnification of 38x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a plain uninoculated cotton swab. This swab, as well as three other materials, including macrofoam (see PHIL 9736, 9737, 9738), polyester (see PHIL 9735), and rayon (see PHIL 9734) were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. See PHIL 9732, for another view of this material. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007

This 2005 scanning electron micrograph (SEM) depicted numerous clumps of methicillin-resistant Staphylococcus aureus bacteria, commonly referred to by the acronym, MRSA; Magnified 2381x. 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, e.g., virulence factors like toxins, may allow the community strains to spread more easily, or cause more skin disease. A common strain named USA300-0114 has caused many such outbreaks in the United States. See PHIL 7823 for a black and white version of this micrograph.Created: 2005

Under a low magnification of 28x, this 2007 scanning electron micrograph (SEM) depicted the fibrous configuration of a plain uninoculated cotton swab. This swab, as well as three other materials, including macrofoam (see PHIL 9736, 9737, 9738), polyester (see PHIL 9735), and rayon (see PHIL 9734) were scanned for a CDC study involving their efficiency in recovery of Bacillus anthracis bacterial spores from steel coupons that had been inoculated with a spore suspension of known concentration. See PHIL 9733, for another view of this material. The article discussing the description of this swab material analysis, and the analytical results was published in Emerging Infectious Diseases, Vol. 10, No. 6, June, 2004, and was entitled, Swab Materials and Bacillus anthracis Spore Recovery from Nonporous Surfaces. A link to this article is found below.Created: 2007