Coccobacillus

A coccobacillus (plural coccobacilli), or bacilluscocco, is a type of bacterium with a shape intermediate between cocci (spherical bacteria) and bacilli (rod-shaped bacteria). Coccobacilli, then, are very short rods which may be mistaken for cocci.^[1]

Haemophilus influenzae, Gardnerella vaginalis, and Chlamydia trachomatis are coccobacilli. Aggregatibacter actinomycetemcomitans is a Gram-negative coccobacillus prevalent in subgingival plaques. Acinetobacter strains may grow on solid media as coccobacilli. Bordetella pertussis is a Gram-negative coccobacillus responsible for causing whooping cough. Yersinia pestis, the bacterium that causes plague, is also coccobacillus.^[2]

Coxiella burnetii is also a coccobacillus.^[3] Bacteria from the genus Brucella are medically important coccobacilli that cause brucellosis. Haemophilus ducreyi, another medically important Gram-negative coccobacillus, is observed in sexually transmitted disease, chancroid, of Third World countries.^[4]

References

^ Tankeshwar, Acharya (April 11, 2016). "Gram-Negative Cocci and Coccobacilli of Medical Significance; List of Bacteria and Diseases".
^ Collins, Frank M. (1996). "Pasteurella, Yersinia, and Francisella". In Baron, Samuel (ed.). Medical microbiology (4 ed.). University of Texas Medical Branch at Galveston. ISBN 978-0-9631172-1-2. PMID 21413268.
^ Walters, Sherry. Thacker, Leon (ed.). "Q-fever (Coxiella burnetti) Zoonoses: An historical and persistent rickettsial disease". Purdue University Animal Disease Diagnostic Laboratory.
^ Schaechter, Moselio; DiRita, Victor J.; Dermody, Terence (2007). Schaechter, Moselio; Engleberg, N. Cary (eds.). Schaechter's Mechanisms of Microbial Disease (4 ed.). Philadelphia, Pa.: Lippincott Williams & Wilkins. p. 666. ISBN 978-0-7817-5342-5.

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[1] Tankeshwar, Acharya (April 11, 2016). "Gram-Negative Cocci and Coccobacilli of Medical Significance; List of Bacteria and Diseases".

[2] Collins, Frank M. (1996). "Pasteurella, Yersinia, and Francisella". In Baron, Samuel (ed.). Medical microbiology (4 ed.). University of Texas Medical Branch at Galveston. ISBN 978-0-9631172-1-2. PMID 21413268.

[urlpersistent_rickettsial_disease-3] Walters, Sherry. Thacker, Leon (ed.). "Q-fever (Coxiella burnetti) Zoonoses: An historical and persistent rickettsial disease". Purdue University Animal Disease Diagnostic Laboratory.

[4] Schaechter, Moselio; DiRita, Victor J.; Dermody, Terence (2007). Schaechter, Moselio; Engleberg, N. Cary (eds.). Schaechter's Mechanisms of Microbial Disease (4 ed.). Philadelphia, Pa.: Lippincott Williams & Wilkins. p. 666. ISBN 978-0-7817-5342-5.

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Coccobacillus

References

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