Category Archives: Images

Includes photos, electronmicrographes, evolutionary trees.

Borrelia burgdorferi – new images of the Lyme disease agent of humans and the borreliosis agent of animals

Members of the phylum Spirochaetes (trivial name: spirochetes) have a very special morphology. They are very thin and rather long (about 0.1-0.3 x 10-20 µm) and spiral shaped. However, in the case of members of the genus Borrelia, the spiral … Continue reading

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Streptococcus agalactiae and S. uberis – new Gram staining images

We have added a new Gram staining image of Streptococcus agalactiae, strain 09mas018883, and we have replaced one Gram staining image of S. uberis, strain VB 004/11, which was of bad quality, with a new one. Lise-Lotte Fernstöm (BVF, SLU) … Continue reading

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Streptococcus agalactiae – new colony images on VetBact

Streptococcus agalactiae cause mastitis in cattle and some other ruminants. We have included new colony images of S. agalactiae on VetBact. The bacteria have been cultivated on bovine blood agar,  a SELMA-plate and purple agar (with lactose). We have also … Continue reading

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New images of spirochetes

Dark field micrographs of Borrelia burgdorferi and Leptospira interrogans have now been included in VetBact. B. burgdorferi is the etiological agent of Lyme borreliosis (or Lyme disease). Humans, dogs, horses, cattle and cats are at risk of infection. Certain serovars … Continue reading

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Staphylococcus epidermidis and other bacteria – new Gram staining images

We have added a Gram staining picture of Staphylococcus epidermidis and we have replaced old gram staining pictures of  Moraxella bovis, Pasteurella multocida subsp. multocida and Pseudomonas aeruginosa with images of higher quality. New Gram staining images, which are included … Continue reading

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Mannheimia haemolytica, Staphylococcus spp. and Yersinia enterocolitica subsp. enterocolitica – new images

We have included a new photo of M. haemolytica cultivated on purple agar (with) lactose in VetBact. We have also included photos of S. aureus subsp. aureus, S. epidermidis and S. intermedius cultivated as  streaks on purple agar (with maltose), … Continue reading

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Rhodococcus equi – new colony pictures

Rhodococcus equi causes airway infections in  horses. We have replaced the old single colony picture of R. equi in VetBact with six new ones. This one shows a closeup of R. equi colonies cultivated on purple agar with lactose. Note … Continue reading

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New colony photos of Staphylococcus aureus

We’ve added some new images in the last couple of days, including some nice colony photos of S. aureus subsp. aureas where the double hemolytic zones are clearly visible. The clear α-hemolysis is indicated with the black arrow and the … Continue reading

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New and improved colony pictures

The quality of some of the colony pictures can be improved and we are continuously replacing some of the old ones. For each bacterium, our goal is to have one picture of the entire agar plate and one closeup of … Continue reading

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