Document Type : Original Article

Authors

1 Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran

2 Non-Communicable Diseases Research Center, Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran

3 Communicable Disease Control Center, Shiraz University of Medical Sciences, Shiraz, Iran

4 Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran

5 Research Center for Health Sciences, Institute of Health, Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran

10.30476/jhsss.2023.96994.1690

Abstract

Background: Brucellosis, a zoonotic disease, poses a significant health and economic challenge in many parts of the world, including Mediterranean and Middle Eastern countries. This study aimed to investigate the risk factors and recurrence of brucellosis, focusing on demographic variables such as age, gender, occupation, place of residence, and the spatiotemporal pattern of the population.
Methods: The study design was cross-sectional.The authors enrolled all Brucella cases registered in the infectious disease surveillance system of Fars province from 2014 to 2018 in the study. They performed a multivariate analysis of the disease risk factors using a Poisson regression model and a multivariate analysis of the risk factors associated with brucellosis recurrence using a logistic regression model.
Results: The incidence of brucellosis in Fars province exhibited a decreasing trend. The findings revealed that the sex ratio of patients who consumed unpasteurized dairy products, the mean age of patients per month, and the proportion of people living in rural areas relative to the total number of patients with brucellosis were significantly associated with the risk of brucellosis. Moreover, the probability of disease recurrence was higher in colder seasons compared to spring.
Conclusion: A higher ratio of lightweight livestock to heavyweight livestock was identified as a risk factor for brucellosis, indicating the more significant role of lightweight livestock in the incidence of brucellosis in Fars province. Therefore, controlling the disease in lightweight livestock is of paramount importance, and the vaccination of these livestock should be more strictly monitored and implemented.

Highlights

Haleh Ghaem (Google Scholar)

Keywords

  1. Pappas G, Papadimitriou P, Akritidis N, Christou L, Tsianos EV. The new global map of human brucellosis. Lancet Infect Dis. 2006;6(2):91-9.
  2. Golshani M, Buozari S. A review of brucellosis in Iran: epidemiology, risk factors, diagnosis, control, and prevention. Iranian biomedical journal. 2017;21(6):349. doi: 10.18869/acadpub.ibj.21.6.349.
  3. Gl M, Je B, Dolin R. Principles and practice of infectious diseases. Churchill Livinstone. 2000;2.
  4. Farazi AA, Hoseini SD. Diagnostic validity of the conventional brucellosis serological tests in. 2012.
  5. Ozden M, Demirdag K, Kalkan A, Ozdemir H, Yuce P. A case of brucella spondylodiscitis with extended, multiple-level involvement. South Med J. 2005;98(2):229-32.
  6. Aa F, Ar G. Brucellaspondylodiscitis and paravertebral abscess with negative serology: a case report. 2012. doi: 10.1016/S1473-3099(06)70382-6.
  7. Kokoglu OF, Hosoglu S, Geyik MF, Ayaz C, Akalın S, Buyukbese MA, et al. Clinical and laboratory features of brucellosis in two university hospitals in Southeast Turkey. Trop Doct. 2006;36(1):49-51.
  8. Skalsky K, Yahav D, Bishara J, Pitlik S, Leibovici L, Paul M. Treatment of human brucellosis: systematic review and meta-analysis of randomised controlled trials. Bmj. 2008;336(7646):701-4.
  9. Ariza J, Bosilkovski M, Cascio A, Colmenero JD, Corbel MJ, Falagas ME, et al. Perspectives for the treatment of brucellosis in the 21st century: the Ioannina recommendations. PLOS medicine. 2007;4(12):e317.doi: 10.1371/journal.pmed.0040317.
  10. Zeinali M, Shirzadi M, Haj Rasooliha H. National guideline for Brucellosis control. Iran Ministry of Health. 2011.
  11. Honarvar B, Moghadami M, Lankarani KB, Davarpanah MA, Ataolahi M, Farbod A, et al. Brucellosis as a neglected disease in a neglected population: a seroepidemiological study of migratory nomads in the Fars province of Iran. Epidemiol Infect 2017;145(3):491-7.
  12. Bagheri H, Tapak L, Karami M, Amiri B, Cherghi Z. Epidemiological features of human brucellosis in Iran (2011-2018) and prediction of brucellosis with data-mining models. J Res Health Sci. 2019;19(4):e00462.PMCID: PMC7183567.
  13. Moosazadeh M, Abedi G, Kheradmand M, Safiri S, Nikaeen R. Seasonal pattern of brucellosis in Iran: A systematic review and meta-analysis. 2016.
  14. Marvi A, Asadi-Aliabadi M, Darabi M, Abedi G, Siamian H, Rostami-Maskopaee F. Trend analysis and affecting components of human brucellosis incidence during 2006 to 2016. Med Arch. 2018;72(1):17.
  15. Muloki HN, Erume J, Owiny DO, Kungu JM, Nakavuma J, Ogeng D, et al. Prevalence and risk factors for brucellosis in prolonged fever patients in post-conflict Northern Uganda. Afr Health Sci. 2018;18(1):22-8.
  16. Al-Shamahy HA, Whitty CJM, Wright SG. Risk factors for human brucellosis in Yemen: a case control study. Epidemiol Infect. 2000;125(2):309-13. doi: 10.1017/s0950268899004458.
  17. Cash-Goldwasser S, Maze MJ, Rubach MP, Biggs HM, Stoddard RA, Sharples KJ, et al. Risk factors for human brucellosis in northern Tanzania. Am J Trop Med Hyg. 2018;98(2):598. doi: 10.4269/ajtmh.17-0125.
  18. Honarvar B, Moghadami M, Lankarani KB, Davarpanah MA, Ataolahi M, Farbod A, et al. Brucellosis as a neglected disease in a neglected population: a seroepidemiological study of migratory nomads in the Fars province of Iran. Epidemiology & Infection. 2017;145(3):491-7.
  19. Pakzad R, Pakzad I, Safiri S, Shirzadi MR, Mohammadpour M, Behroozi A, et al. Spatiotemporal analysis of brucellosis incidence in Iran from 2011 to 2014 using GIS. Int J Infect Dis. 2018;67:129-36.
  20. Aloufi AD, Memish ZA, Assiri AM, McNabb SJN. Trends of reported human cases of brucellosis, Kingdom of Saudi Arabia, 2004–2012. Journal of epidemiology and global health. 2016; 6(1):11-8. doi: 10.1016/j.jegh.2015.09.001.
  21. Hamzavi Y, Khademi N, Zadeh MMG, Janbakhsh A. Epidemiology of malt fever in Kermanshah province in 2011. Journal of Kermanshah University of Medical Sciences. 2014;18(2).
  22. Nematollahi S, Ayubi E, Karami M, Khazaei S, Shojaeian M, Zamani R, et al. Epidemiological characteristics of human brucellosis in Hamadan Province during 2009–2015: results from the National Notifiable Diseases Surveillance System. Int J Infect Dis. 2017;61:56-61.
  23. Alavi SM, Alavi SMR, Alavi L. Relapsed human brucellosis and related risk factors. Pak J Med Sci. 2009;25(1):46-50.