Stock Photo - Haemophilus ducreyi, or Ducrey´s bacillus, is transmitted through sexual contact STD. The bacterium is extremely contagious, bringing no immunity. It causes chancroid, characterised by a bleeding ulcer associated with adenopathies. Seen through an optical microscope.

Stock Photo: Haemophilus ducreyi, or Ducrey's bacillus, is transmitted through sexual contact STD. The bacterium is extremely contagious, bringing no immunity.

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