1530 - A Cluster of Disseminated Gonococcal Infections in a Non-Immunocompromised Veteran Population

Background: Disseminated gonococcal infection (DGI) is an uncommon manifestation of N. gonorrhoeae that is estimated to occur in 0.5-3% of cases, with a decreasing incidence that has been attributed to changes in circulating serotypes. At a Veterans Affairs Medical Center (VAMC), 3 cases were identified within 4 months in 2019.

Methods: A case series of patients with DGI between March and July 2019 was conducted at a 399-bed tertiary care VAMC that serves central Virginia. Clinical case data was abstracted from the medical record, and data regarding prior gonorrhea cases at the facility was obtained from the laboratory information system.

Results: In 2019, the rate of DGI was 4.9%, with 3 cases out of 61 reported. All occurred in immunocompetent, African-American males with a mean age of 59 years, and all had female sexual partners (Table 1). All presented with joint symptoms, 2 had skin manifestations, and none had genital symptoms. Two patients had positive synovial fluid cultures and the third had a positive blood culture. All isolates were beta-lactamase negative. Orogenital testing by nucleic acid amplification was only positive in 1 patient. No other sexually transmitted infections were identified. One patient underwent surgical washout of the involved shoulder joint, but the others were managed non-operatively. All received a single dose of azithromycin and a 14-day course of ceftriaxone with full symptom resolution. These were the first positive N. gonorrhoeae isolates from invasive specimens at this VAMC since at least 2016.Table 1. Clinical History and Laboratory Results at Presentation for Patients with Disseminated Gonococcal Infection


Conclusion: This cluster of DGI cases was unusual given the recent rarity at this VAMC, the age of the patients, and lack of overt risk factors. In Virginia, DGI is reported to the health department no differently than uncomplicated infections, so the actual rate of DGI regionally is unknown. One isolate was preserved and sent to the Centers for Disease Control and Prevention for deidentified whole genome sequencing. More refined reporting is necessary to improve understanding of local gonorrhea epidemiology, as well as coupling with additional methodologies such as serotyping or whole genome sequencing. Clinicians should be aware of the possibility of DGI, even in older patients without classic risk factors.