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Volume 16, Number 9—September 2010

CME ACTIVITY

Recurrent Granulibacter bethesdensis Infections and Chronic Granulomatous Disease

David E. GreenbergComments to Author , Adam R. Shoffner, Adrian M. Zelazny, Michael E. Fenster, Kol A. Zarember, Frida Stock, Li Ding, Kimberly R. Marshall-Batty, Richard L. Wasserman, David F. Welch, Kishore Kanakabandi, Dan E. Sturdevant, Kimmo Virtaneva, Stephen F. Porcella, Patrick R. Murray, Harry L. Malech, and Steven M. Holland
Author affiliations: Author affiliations: National Institutes of Health, Bethesda, Maryland, USA (D.E. Greenberg, A.R. Shoffner, A.M. Zelazny, M.E. Fenster, K.A. Zarember, F. Stock, L. Ding, K.R. Marshall-Batty, P.R. Murray, H.L. Malech, S.M. Holland); University of Texas Southwestern Medical Center, Dallas, Texas, USA (R.L. Wasserman, D.F. Welch); Children's Medical Center, Dallas (D.F. Welch); Medical City Dallas Hospital, Dallas (D.F. Welch); National Institutes of Health, Hamilton, Montana, USA (K. Kanakabandi, D.E. Sturdevant, K. Virtaneva, S.F. Porcella)

Suggested citation for this article

Abstract

Chronic granulomatous disease (CGD) is characterized by frequent infections, most of which are curable. Granulibacter bethesdensis is an emerging pathogen in patients with CGD that causes fever and necrotizing lymphadenitis. However, unlike typical CGD organisms, this organism can cause relapse after clinical quiescence. To better define whether infections were newly acquired or recrudesced, we use comparative bacterial genomic hybridization to characterize 11 isolates obtained from 5 patients with CGD from North and Central America. Genomic typing showed that 3 patients had recurrent infection months to years after apparent clinical cure. Two patients were infected with the same strain as previously isolated, and 1 was infected with a genetically distinct strain. This organism is multidrug resistant, and therapy required surgery and combination antimicrobial drugs, including long-term ceftriaxone. G. bethesdensis causes necrotizing lymphadenitis in CGD, which may recur or relapse.

Chronic granulomatous disease (CGD) is a rare genetic disease caused by mutations in any of the 4 structural genes of the NADPH oxidase system and leads to defective production by phagocytes of superoxide and downstream oxygen metabolites (1). Infections in patients with CGD are caused by a narrow spectrum of pathogens, including Staphylococcus aureus, Serratia marcescens, Burkholderia cepacia complex, Nocardia spp., and Aspergillus spp (24). Although lymphadenitis is commonly encountered, a pathogen is isolated in only ≈60% of cases (5).

Most human bacterial infections, even those that are severe, are transient and curable. Bacteria such as Mycobacterium tuberculosis are unique human pathogens in part because of their ability to persist in a dormant state and reactivate later. The recurrent infections observed in patients with CGD, even when caused by the same species of organism, are the result of reinfection rather than relapse (3,6). Granulibacter bethesdensis is a recently described gram-negative bacterium in the family Acetobacteraceae; it has been isolated from 6 patients with CGD from North and Central America and Spain (710). The initial case was in an adult who had prolonged fever, necrotizing lymphadenitis, and multiple disease recurrences culminating in cure 2 years after seeking treatment. Persons with subsequent cases in the Americas had shorter periods before diagnosis and more rapid responses to therapy. A fatal case reported in Spain involved a patient with CGD in whom G. bethesdensis was the only pathogen identified. Given the increasing cases of this emerging pathogen, we present in greater detail the clinical course of these patients and molecular epidemiologic evidence to support the recurrent infections we have diagnosed for some of these patients.

Five patients were followed up at the National Institutes of Health (NIH) Clinical Center (Bethesda, MD, USA) under protocol 93-I-0119. Patients 2, 3, and 5 had been actively followed up at NIH for at least 8 years before receiving a diagnosis of G. bethesdensis infection. Patient 1 had been sent to NIH for evaluation of his lymphadenopathy and Granulibacter infection was diagnosed shortly thereafter. Patient 4 was referred to NIH for treatment and follow-up after his Granulibacter infection was diagnosed at an outside hospital (by R.L.W. and D.F.W.).

The G. bethesdensis high-density microarray platform, DNA microarray hybridization, and comparative genomic hybridization analysis used for typing of the G. bethesdensis isolates have been described (9). Bacterial DNA was isolated by using the NucliSens Kit (bioMérieux, Durham, NC, USA), and 16S rRNA genes from the 5 patient isolates were sequenced and analyzed as described (8). DNA was isolated from human tissue by using the Maxwell 16 Tissue DNA Purification Kit (Promega, Madison, WI, USA) according to the manufacturer’s protocol. DNA concentrations were measured by using a UV spectrophotometer (NanoDrop, Wilmington, DE, USA).

The 16S rRNA and methanol dehydrogenase subunit 1 (GeneID YP_744165.1) genes of G. bethesdensis were analyzed by using a PCR and primer sequences 16S-forward: 5′-TCGGGTGGGCACTCTAAAGG-3′, 16S-reverse: 5′-GCATCACTGCCTAGCTTCCC-3′, MDH-forward: 5′-CCGCAATACGGTCAATTCG-3′, and MDH-reverse: 5′-GCCGATCTTCCAGGTTTCTTC-3′. Each reaction mixture contained 47 μL of Platinum Blue PCR SuperMix (Invitrogen, Carlsbad, CA, USA) and 1.5 μL of each primer at a final concentration of 0.75 μmol/L, and the PCR was performed in a thermocycler (Eppendorf, Hauppauge, NY, USA). The PCR amplification conditions were 94°C for 10 min; 40 cycles at 94°C for 30 s, 60°C for 30 s, and 72°C for 30 s; and a final extension at 72°C for 5 min. PCR fragments were visualized by electrophoresis on a 2% agarose gel and showed the expected sizes of 137 bp (16SrRNA) and 63 bp (methanol dehydrogenase subunit 1).

Case Reports

Patient 1

A 39-year-old man from the United States with X-linked CGD had persistent fever, chills, weight loss, and increased levels of inflammatory markers starting in April 2003, as described (5). Computed tomography (CT) scans showed necrotic mediastinal and cervical nodes (Table A1). Resection samples of cervical nodes grew G. bethesdensis. Therapy with meropenem and doxycycline resulted in resolution of the lesions. However, the patient had recurrences of necrotizing cervical and axillary lymphadenitis over the next 2 years, and G. bethesdensis was isolated on 3 separate occasions. Treatment with ceftriaxone and doxycycline for 1 year resolved his lymphadenitis. He has had no further recurrence but has had persistent chronic fatigue since onset of infection.

Patient 2

Figure 1

Thumbnail of Radiologic and histologic findings for patients with Granulibacter bethesdensis infections. A) Contrast-enhanced computed tomography (CT) image for patient 2, showing enlarged epigastric nodes (arrow) in the abdomen. B) Contrast-enhanced CT image for patient 3, showing lymphadenopathy (arrow). The heterogeneity of the lymph node suggests necrosis. C) Noncontrast CT image of the spine for patient 4, showing enlarged cervical lymph nodes (arrow). D) Contrast-enhanced CT image for pati

Figure 1. Radiologic and histologic findings for patients with Granulibacter bethesdensis infections. A) Contrast-enhanced computed tomography (CT) image for patient 2, showing enlarged epigastric nodes (arrow) in the abdomen. B) Contrast-enhanced CT image...

A 36-year-old man from the United States with X-linked CGD had cough and fever in November 2005. He had lymphadenopathy of the supraclavicular, paratracheal, subcarinal, perihilar, internal mammary, perigastric, retroperitoneal, iliac, and inguinal lymph nodes and multiple splenic lesions (Figure1, panel A; Table A1). The erythrocyte sedimentation rate (ESR) was 50 mm/h. Empirical treatment with itraconazole and linezolid did not prevent increased abdominal distension and continued fever.

Figure 2

Thumbnail of Radiologic and pathologic findings of Granulibacter bethesdensis infection in patient 2, a 36-year-old man from the United States with X-linked chronic granulomatous disease. A) Contrast-enhanced computed tomography (CT) image at initial examination (December 2005), showing multiple lucencies in the spleen (arrows) and edema and stranding in the omentum and mesentery. B) Contrast-enhanced CT image (September 2006), showing resolution of splenic lesions after prolonged antimicrobial

Figure 2. Radiologic and pathologic findings of Granulibacter bethesdensis infection in patient 2, a 36-year-old man from the United States with X-linked chronic granulomatous disease. A) Contrast-enhanced computed tomography (CT) image at initial...

A CT scan in December 2005 showed enlarging left internal mammary lymphadenopathy, ascites, and enlarging splenic lesions (Figure 2, panel A). Leukocyte count was 13.5 × 103 cells/μL with 79% neutrophils. Ascitic fluid was cloudy with 3,100 leukocytes/μL (45% lymphocytes, 27% neutrophils) and 2,813 erythrocytes/μL. Gram stain showed no organisms. Treatment with meropenem and trimethoprim/sulfamethoxazole was begun. A CT-guided biopsy specimen of perigastric lymph nodes showed necrotizing granulomatous inflammation (Figure 1, panel F), but results of fungal and acid-fast staining were negative. Multiple blood cultures were negative. On hospital day 4, fever continued. Itraconazole was stopped, and voriconazole and tobramycin were started. Fever abated shortly thereafter and the patient recovered.

A gram-negative rod was isolated from ascitic fluid on Middlebrook 7H11 agar after 15 days of incubation; 16S rDNA sequencing confirmed that the isolate was G. bethesdensis. The patient was treated with ceftriaxone for 6 weeks and showed a positive response over the next year and resolution of his lesions (Figure 2, panel B). He continued to take trimethoprim/sulfamethoxazole and was treated with γ-interferon. In September 2007, sweats, chills, and splenic lesions developed. After CT-guided biopsy, he was treated with cefpodoxime and doxycycline; treatment with trimethoprim/sulfamethoxazole and γ-interferon continued.

Figure 3

Thumbnail of Detection of Granulibacter sp. DNA by PCR of the spleen of a patient with chronic granulomatous disease. Lanes 1 and 2, no template controls for each primer set; lane 3, 400 ng of spleen DNA amplifying Granulibacter sp. 16S rRNA gene; lane 4, 400 ng of spleen DNA amplifying the Granulibacter sp. methanol dehydrogenase gene; lane 5, 100 ng DNA from the G. bethesdensis type strain amplifying the 16S rRNA gene (positive control); lane 6, 100 ng DNA from the G. bethesdensis type strain

Figure 3. Detection of Granulibacter sp. DNA by PCR of the spleen of a patient with chronic granulomatous disease. Lanes 1 and 2, no template controls for each primer set; lane 3, 400...

One colony of a gram-negative rod was seen on Middlebrook 7H11 medium after 10 days of incubation; 16S rDNA sequencing confirmed that the isolate was G. bethesdensis. Despite antimicrobial drug therapy, the splenic lesions became more numerous and necessitated a splenectomy in April 2008 (Figure 2, panels C, D). A portion of splenic tissue was used for PCR detection of Granulibacter-specific 16S rRNA and methanol dehydrogenase genes (Figure 3). PCR products of the expected sizes were identified from splenic tissue. The culture from the splenectomy showed a positive result 6 days later on mycobacterial media. The patient was treated with tigecycline for 3 months and has had no further relapses.

Patient 3

A 13-year-old boy from the United States with X-linked CGD was admitted for persistent fever and diffuse thoracic lymphadenopathy in January 2006. He had been followed up for Staphylococcus epidermidis submandibular abscesses since November 2004. He had enlarged nodes, many of which appeared necrotic, in the superior mediastinum, pretracheal region, aortopulmonary window, right hilum and subcarinal areas (Figure 1, panel B; Table A1). A transbronchial biopsy specimen of the subcarinal and right paratracheal nodes grew 1 colony each of Candida glabrata, S. epidermidis, Streptococcus mitis group, and a gram-negative rod. The gram-negative rod grew after 4 days of incubation on buffered-charcoal yeast extract (BCYE) agar. Routine biochemical tests did not identify the organism, but 16S rDNA sequencing confirmed that the isolate was G. bethesdensis.

The patient was initially treated with meropenem and voriconazole. When a repeat CT scan 2 weeks later showed enlarged mediastinal lymph nodes, meropenem was discontinued and ceftriaxone, tobramycin, and doxycycline were initiated. A CT scan 1 week later showed smaller lymph nodes. The patient stopped taking tobramycin after renal toxicity developed in March 2006, and he received ceftriaxone until May 2006. His lymphadenopathy resolved and he received doxycycline until March 2007. In December 2008, new fevers and subcarinal lymphadenopathy developed. A fine-needle aspiration specimen yielded a gram-negative rod on fungal media (IMA agar) after 15 days of incubation; 16S rDNA sequencing confirmed that the isolate was G. bethesdensis. He responded clinically and radiographically to ceftriaxone. He was then switched to cefdinir in January 2009 after gallstones developed and continued to receive this therapy until July 2009. The patient has had no further relapses.

Patient 4

A 17-year-old boy from Panama with X-linked CGD had cervical lymphadenopathy for 2 months in June 2005. He had been treated with trimethoprim/sulfamethoxazole until the age of 15 when a chest wall infection with an unidentified basidiomycete developed. Since then, he had responded well to itraconazole and trimethoprim/sulfamethoxazole prophylaxis until lymphadenopathy developed. Cervical and mediastinal lymphadenopathy biopsy specimens (Figure 1, panel C) showed necrotizing granulomatous inflammation. One week after surgery, painful hard, 1-cm, right anterior cervical and 2-cm, right supraclavicular lymph nodes developed. Treatment with levofloxacin was begun, and another lymph node was excised and cultured. Necrotizing granulomata were seen again (Figure 1, panel E).

Pinpoint colonies were seen on sheep blood agar after 6 days of incubation and were subcultured in BCYE medium. The gram-negative rod could not be identified biochemically; 16S rDNA sequencing confirmed that the isolate was G. bethesdensis. While receiving levofloxacin, adenopathy increased in the patient. Five weeks later, another cervical lymph node was removed. After 4 days, the culture grew G. bethesdensis as pinpoint colonies on sheep blood agar. The patient was treated with doxycycline and responded well clinically without further recurrences.

Patient 5

The 37-year-old brother of patient 2, who also had X-linked CGD, had fever, chills, and chest pain for 2 weeks in October 2008. New left lower lobe nodules and left infrahilar adenopathy prompted bronchoalveolar lavage, which showed macrophages and scattered neutrophils. Cultures were negative, but the patient was treated with levofloxacin, linezolid and posaconazole and continued receiving trimethoprim/sulfamethoxazole. Fever and pulmonary nodules resolved but adenopathy persisted. Treatment with antimicrobial drugs was stopped in December 2008. Fever and chills returned in February 2009. His ESR was 78 mm/h. Magnetic resonance imaging of the chest showed multiple enlarged anterior mediastinal and bilateral hilar lymph nodes. Bronchoscopy with transbronchial needle aspiration yielded S. epidermidis and α-hemolytic streptococci in liquid media. The patient was then treated with voriconazole and ceftriaxone.

Despite this therapy, left supraclavicular lymphadenopathy and splenic and liver lesions developed in April 2009 (Figure 1, panel D; Table A1). A lymph node biopsy specimen in May 2009 showed necrotizing granulomatous inflammation and grew G. bethesdensis after 7 days of incubation on BCYE and mycobacterial media. Ototoxicity developed while he was being treated with ceftriaxone, gentamicin, and vancomycin. He was then treated with ceftriaxone, doxycycline, and trimethoprim/sulfamethoxazole for 4 months and showed clinical and radiographic improvement. He was treated with cefdinir in September 2009 and has continued treatment with doxycycline and trimethoprim/sulfamethoxazole and has not had any new relapses. Patients 2 and 5 live apart but see each other a few times per year and had been together during the illness of patient 2.

All patients had fever, lymphadenopathy, and increased ESRs for weeks or months (Table A1). The chronicity of the prodrome is distinct from the more typical clinical appearance of staphylococcal lymphadenitis in CGD, which is frequently cervical and of shorter duration before being observed. All biopsy tissues showed necrotizing granulomatous inflammation but staining did not detect any organisms. However, organisms are not usually abundant in persons with CGD lymphadenitis and stains are often not diagnostic. All samples grew G. bethesdensis within 3 weeks on a variety of media (Middlebrook 7H11, BCYE, and fungal media), but growth was sparse. PCR amplification identified specific G. bethesdensis bands in excised spleen, which indicated that molecular diagnosis can be made from fresh tissue, a useful consideration for an organism that is slow growing and difficult to identify (Figure 3).

Those patients who received ceftriaxone had good clinical responses. However, patients appeared to have responded to other agents, including meropenem, aminoglycosides, doxycycline, and trimethoprim/sulfamethoxazole in various combinations. Patients 1 and 2 had recurrences over prolonged periods, which indicated a capacity for G. bethesdensis to survive in a clinically latent state.

The 16S rDNA sequences for all patients showed 100% matches to the 16S rDNA sequence derived from the isolate from patient 1, NIHCGD1, the type strain of G. bethesdensis (GenBank accession no. AY788950). This finding indicated that these isolates are all appropriately designated G. bethesdensis sensu stricto. The isolate reported by Lopez et al. (10) from Spain showed only a 99.7% match for the 16S rDNA sequence, which suggested regional variability or another Granulibacter sp.

Figure 4

Thumbnail of Physical gene representation of DNA hybridization of 11 isolates of Granulibacter bethesdensis by DNA–DNA hybridization microarray-based investigation of gene distributions among G. bethesdensis isolates. Every open reading frame in the G. bethesdensis type strain is represented. Hybridization is shown in yellow, and absence of hybridization is shown in blue. Four sequential isolates (NIH 1.1, NIH 1.2, NIH 1.3, and NIH 1.4) from patient 1 are shown from left to right and group with

Figure 4. Physical gene representation of DNA hybridization of 11 isolates of Granulibacter bethesdensis by DNA–DNA hybridization microarray-based investigation of gene distributions among G. bethesdensis isolates. Every open reading frame in the G....

We had shown that all isolates from patient 1 over a 2-year period were identical (9). DNA samples from 3 isolates from patient 2 obtained over a 3-year period were hybridized to the previously reported Granulibacter microarray chip (9). Hybridization patterns of the 3 isolates were essentially identical, which indicated that the same organism was responsible for disease in patient 2 from his initial hospitalization through his splenectomy (Figure 4). This comprehensive analysis of genomic stability over several years indicates that G. bethesdensis can potentially achieve clinical latency over prolonged periods in the human host, even without causing signs or symptoms.

In contrast to DNA from patient 2, DNA from the second isolate from patient 3 was compared with that from his original isolate by using the Granulibacter microarray chip. The hybridization pattern of his second isolate was distinct from his first isolate at multiple loci of the genome, which indicated reinfection with a different strain of G. bethesdensis (Figure 4). The G. bethesdensis isolate from patient 5 was distinct from that of his brother (patient 2) at multiple loci, as determined by using the Granulibacter microarray chip (Figure 4).

Conclusions

Five patients with CGD from different parts of North and Central America had strikingly similar syndromes of prolonged fever and necrotizing lymphadenitis, all of which were caused by G. bethesdensis. Unlike most bacteria, G. bethesdensis can cause acute infections, relapses after apparently effective therapy, and reinfections, which indicate a lack of sterilizing and protective immunity in persons with CGD. These features are uncommon but serious. Tuberculosis, for example, causes acute disease, relapsing disease after prolonged latency and reinfection after definitive treatment. Sterilizing immunity has been difficult to prove (11,12). In contrast to most other CGD pathogens, most disseminated G. bethesdensis infections were chronic but not fatal. Although none of the 5 patients reported here died from their G. bethesdensis infections, a child from Spain died from infection with a G. bethesdensis isolate that was slightly different in its 16S rDNA sequence from the reference strain (10). Similar to our experience with humans, infection with G. bethesdensis in mice with CGD leads to a chronic persistent infection with a paucity of symptoms (7).

The Granulibacter microarray has enabled us to definitively identify genetic variability in G. bethesdensis through comparative genomic hybridization. Although all patient isolates were phenotypically Granulibacter spp. and 100% identical on the basis of full-length 16S rDNA sequencing, most of the hybridization patterns of patient isolates were different and unique according to comparative genomic hybridization, which indicated that these isolates are potentially distinct strains (9). This capacity proved critical for identifying persistence (the 4 isolates from patient 1 and the 3 isolates of patient 2) and reinfection (patient 3). Therefore, for patients 1 and 2, Granulibacter spp. most likely resided within the host in clinically latent reservoirs.

The ability to recur months to years after apparent clinical improvement is unlike other bacterial pathogens in persons with CGD. Use of comparative genomic hybridization to type our strains was critical in differentiating relapse from reinfection and in reinforcing our approach to treat these persons with these infections with long courses of antimicrobial drugs. Patients 1 and 2 may have had recurring environmental exposure to a source of nearly genetically identical G. bethesdensis, but this suggestion cannot be proven because we have not identified the environmental source for any of the isolates obtained. Patient 3 may have had a mixed infection at his initial hospitalization, followed by clearance of 1 isolate of Granulibacter spp. and persistence of the other. The microarray comparative genomic hybridization data demonstrate that for patients 2 and 5, brothers with splenic disease, each had different isolates.

Isolation of G. bethesdensis is time-consuming, growth is consistently sparse, and initial definitive identification requires sequencing the 16S rRNA gene. In the clinical laboratory, G. bethesdensis was most frequently isolated on special media and not on routine media normally used for cultivating gram-negative bacteria. Therefore, development of a molecular test for G. bethesdensis is imperative and will improve the speed and sensitivity of diagnosis. PCR of fresh tissue with 2 highly specific gene probes accurately detected Granulibacter spp. DNA in the spleen of patient 2. Development of PCR technology for fixed specimens is ongoing.

Members of the family Acetobacteraceae have been isolated from various tropical fruits, fermented foods, flowers, and soil (13). Although G. bethesdensis has thus far been isolated only from patients with CGD, other members of the family Acetobacteraceae appear to be emerging as pathogens in non-CGD hosts. Within the past 5 years, infections with other Acetobacteraceae spp. in 6 patients have been described. Acetobacter cibinongensis was found in the blood of a patient with end-stage renal disease and fever (14). Acetobacter indonesiensis was found in the sputum of a lung transplant patient (15). Asaia bogorensis has been reported as a cause of bacteremia in 2 intravenous drug users (16,17) and as a cause of peritonitis in a patient receiving peritoneal dialysis (18). Asaia lannaensis was described as a cause of bacteremia in a bone marrow transplant patient (19). It is unclear whether the increasing recognition of these opportunistic pathogens has been caused by improved microbiologic detection or by a yet unrecognized shift in our interactions with the microbial world. Why G. bethesdensis appears to cause clinical disease in the CGD host specifically is the subject of ongoing laboratory studies.

G. bethesdensis is resistant to antimicrobial drugs in vitro and apparently in vivo. Susceptibility testing is difficult because of the inherent slow growth of this pathogen and the lack of established susceptibility criteria. This organism shows extensive resistance to most cephalosporins, penicillins (including carbapenems), and quinolones. However, ceftriaxone (MIC 8 μg/mL), aminoglycosides (e.g., gentamicin, MIC 8 μg/mL), doxycycline, and trimethoprim/sulfamethoxazole show activity in vitro. Our patients were treated with various combinations of these drugs; all showed initial resolution of disease. Ceftriaxone is currently our preferred treatment.

The reasons underlying the emergence of new pathogens are complex. The changing environments in which we and our microbial companions live make predicting when, where, and why a new pathogen will emerge difficult. Typically, we are best at recognizing clinical syndromes and working back toward the etiology. Given the difficulty of growing and identifying Granulibacter spp., other cases of this infection in patients with CGD and those without CGD may have been overlooked. To address this issue, we now concentrate specimens, particularly from lymph nodes of patients with CGD, by centrifugation, place the specimens on BCYE and Middlebrook 7H11 agar, and incubate cultures for a minimum of 2 weeks.

Clinical management of CGD has long been confounded by the relatively high rate of failure of isolating a pathogen from involved sites. This failure has been attributed to many features of CGD, including exuberant inflammation. In some cases, clinicians attribute culture-negative lesions to the inflammatory diathesis of CGD. However, the finding of a difficult-to-grow and difficult-to-identify pathogen makes this assumption unlikely, particularly in the setting of necrotizing lymphadenopathy. Identification of a fastidious, slow-growing bacterium that causes a discrete, chronic infection reminds us that new syndromes remain to be identified, even within well-described and well-characterized diseases.

Dr Greenberg is an assistant clinical investigator in the Laboratory of Clinical Infectious Diseases at NIH. His research interests include bacterial pathogenesis and host–pathogen interactions in the immunocompromised host.

Acknowledgments

NIH has filed an international patent application with regard to G. bethesdensis. Co-inventors include D.E.G., A.M.Z., P.R.M., and S.M.H.

This study was supported by the Intramural Research Program of the National Institute of Allergy and Infectious Diseases, NIH.

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Figures

Table

Suggested citation for this article: Greenberg DE, Shoffner AR, Zelazny AM, Fenster ME, Zarember KA, Stock F, et al. Recurrent Granulibacter bethesdensis infections and chronic granulomatous disease. Emerg Infect Dis [serial on the Internet]. 2010 Sep [date cited]. http://wwwnc.cdc.gov/eid/article/16/9/09-1800.htm

DOI: 10.3201/eid1609.091800

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