Rhizobium radiobacter: A Recently Recognized Cause of Bacterial Keratitis

Nigel H. Barker; Jordan M. Thompson; Martin G. Mullen; Melissa A. Weekes; Linda N. Nguyen; Crystal K.M. Haynes; Darlene Miller

doi:10.1097/ICO.0000000000000780

Rhizobium radiobacter: A Recently Recognized Cause of Bacterial Keratitis

Nigel H. Barker, Jordan M. Thompson, Martin G. Mullen, Melissa A. Weekes, Linda N. Nguyen, Crystal K.M. Haynes, Darlene Miller

Ophthalmology

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Purpose: To present the first reported cases of keratitis caused by Rhizobium radiobacter. Methods: A retrospective review of an observational case series from 2 institutions. Results: There were 4 cases of microbiologically proven R. radiobacter. Three of these patients were contact lens wearers. The patient in case 4 defaulted from follow-up after receipt of the culture result. Keratitis in the other cases resolved with variable clinical courses once culture-directed therapy was instituted. Conclusions: R. radiobacter is a member of the genus Rhizobium. It is a gram-negative bacillus and was previously identified as an opportunistic pathogen in nonophthalmic infections and in a few cases of endophthalmitis. To our knowledge, we have described the clinical presentation, management, and treatment outcomes of the first reported cases of keratitis caused by R. radiobacter.

Original language	English (US)
Pages (from-to)	679-682
Number of pages	4
Journal	Cornea
Volume	35
Issue number	5
DOIs	https://doi.org/10.1097/ICO.0000000000000780
State	Published - Jan 1 2016

Keywords

Rhizobium radiobacter
culture
infiltrate
keratitis
treatment

ASJC Scopus subject areas

Ophthalmology

Access to Document

10.1097/ICO.0000000000000780

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title = "Rhizobium radiobacter: A Recently Recognized Cause of Bacterial Keratitis",

abstract = "Purpose: To present the first reported cases of keratitis caused by Rhizobium radiobacter. Methods: A retrospective review of an observational case series from 2 institutions. Results: There were 4 cases of microbiologically proven R. radiobacter. Three of these patients were contact lens wearers. The patient in case 4 defaulted from follow-up after receipt of the culture result. Keratitis in the other cases resolved with variable clinical courses once culture-directed therapy was instituted. Conclusions: R. radiobacter is a member of the genus Rhizobium. It is a gram-negative bacillus and was previously identified as an opportunistic pathogen in nonophthalmic infections and in a few cases of endophthalmitis. To our knowledge, we have described the clinical presentation, management, and treatment outcomes of the first reported cases of keratitis caused by R. radiobacter.",

keywords = "Rhizobium radiobacter, culture, infiltrate, keratitis, treatment",

author = "Barker, {Nigel H.} and Thompson, {Jordan M.} and Mullen, {Martin G.} and Weekes, {Melissa A.} and Nguyen, {Linda N.} and Haynes, {Crystal K.M.} and Darlene Miller",

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T2 - A Recently Recognized Cause of Bacterial Keratitis

AU - Barker, Nigel H.

AU - Thompson, Jordan M.

AU - Mullen, Martin G.

AU - Weekes, Melissa A.

AU - Nguyen, Linda N.

AU - Haynes, Crystal K.M.

AU - Miller, Darlene

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Purpose: To present the first reported cases of keratitis caused by Rhizobium radiobacter. Methods: A retrospective review of an observational case series from 2 institutions. Results: There were 4 cases of microbiologically proven R. radiobacter. Three of these patients were contact lens wearers. The patient in case 4 defaulted from follow-up after receipt of the culture result. Keratitis in the other cases resolved with variable clinical courses once culture-directed therapy was instituted. Conclusions: R. radiobacter is a member of the genus Rhizobium. It is a gram-negative bacillus and was previously identified as an opportunistic pathogen in nonophthalmic infections and in a few cases of endophthalmitis. To our knowledge, we have described the clinical presentation, management, and treatment outcomes of the first reported cases of keratitis caused by R. radiobacter.

AB - Purpose: To present the first reported cases of keratitis caused by Rhizobium radiobacter. Methods: A retrospective review of an observational case series from 2 institutions. Results: There were 4 cases of microbiologically proven R. radiobacter. Three of these patients were contact lens wearers. The patient in case 4 defaulted from follow-up after receipt of the culture result. Keratitis in the other cases resolved with variable clinical courses once culture-directed therapy was instituted. Conclusions: R. radiobacter is a member of the genus Rhizobium. It is a gram-negative bacillus and was previously identified as an opportunistic pathogen in nonophthalmic infections and in a few cases of endophthalmitis. To our knowledge, we have described the clinical presentation, management, and treatment outcomes of the first reported cases of keratitis caused by R. radiobacter.

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