Gram stain, urethral exudate, from male with urethritis, 1974. Note the lack of gram negative intracellular diplococci. Gram-stain technique, which employs crystal violet as the primary stain, imparts a purplish-brown color to bacteria that stain Gram-positive. Those that stain with the pink-red fuchsin counterstain are said to stain Gram-negative. Image courtesy CDC/Dr. Norman Jacobs.

Gram stain, urethral exudate, from male with urethritis, 1974. Note the lack of gram negative intracellular diplococci. Gram-stain technique, which employs crystal violet as the primary stain, imparts a purplish-brown color to bacteria that stain Gram-positive. Those that stain with the pink-red fuchsin counterstain are said to stain Gram-negative. Image courtesy CDC/Dr. Norman Jacobs. Stock Photo
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Image details

Contributor:

Gado Images / Alamy Stock Photo

Image ID:

KTWRY0

File size:

57.5 MB (1.5 MB Compressed download)

Releases:

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Dimensions:

5500 x 3652 px | 46.6 x 30.9 cm | 18.3 x 12.2 inches | 300dpi

Date taken:

1 January 1974

Location:

United States

More information:

This image could have imperfections as it’s either historical or reportage.

Gram stain, urethral exudate, from male with urethritis, 1974. Note the lack of gram negative intracellular diplococci. Gram-stain technique, which employs crystal violet as the primary stain, imparts a purplish-brown color to bacteria that stain Gram-positive. Those that stain with the pink-red fuchsin counterstain are said to stain Gram-negative. Image courtesy CDC/Dr. Norman Jacobs.

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