1423 - Clinical Presentation Of Brucellosis: An Experience Of 29-Year Period

Background: Brucellosis is a multi-organ zoonotic disease which may present with a myriad manifestation. In our country, brucellosis remains endemic and represents a public health problem. We aimed to study the clinical, therapeutic and evolutionary features of brucellosis.

Methods: We conducted a retrospective study including all patients hospitalized for brucellosis in the infectious diseases department between 1990 and 2018. Positive blood cultures to Brucella spp and/or standard agglutination test (SAT) titer > 1/160 confirmed the diagnosis.

Results: During the study period, we encountered 216 cases of brucellosis, among whom 140 cases were males (64.8%). The mean age was 40±17 years. Patients came from rural areas (89.8%) and had a close contact with animals (70.8%). The consumption of unpasteurized milk was noted in 182 cases (84.2%). A family history of brucellosis was noted in 53 cases (24.5%). In total, 68 patients had a previous medical history of treated brucellosis (31.4%). There were 113 cases (52.3%) of acute brucellosis and 103 cases (47.7%) of sub-acute brucellosis. Spondylodiscitis (65 cases; 63.1%), neurobrucellosis (17 cases; 16.5%) and sacroiliitis (12 cases; 11.7%) were the most common forms of the sub-acute brucellosis. The revealing symptoms were fever (83.8%), night sweats (71.3%), arthralgia (55.1%) and back pain (53.2%). Laboratory investigations revealed leukopenia (14.4%), anemia (49%) and elevated C-reactive protein levels (42.1%). Blood cultures were positive to Brucella in 17.1% of the cases. Patients received a combination therapy based on doxycycline and rifampicin in 141 cases (65.2%). Triple therapy regimen including doxycycline, rifampicin and co-trimoxazole was prescribed in 51 cases (23.6%). The mean treatment duration was 52±20 days in the acute form and 6±3 months in the sub-acute form. The disease evolution was favourable in 94.4% of the cases. Sequelae were noted in 12% of the cases and relapse in 3.7% of the cases. Four patients were dead (1.9%).

Conclusion: Due to its various clinical presentation, the diagnosis of brucellosis might be delayed. High index of suspicion is required in order to promptly diagnose the disease. Control and eradication of brucellosis in animals are mandatory so as to eradicate brucellosis.