Occurrence of brucellosis in patients of pyrexia of unknown origin - IJMMTD- Print ISSN No: - 2581-4753 Online ISSN No:- 2581-4761 Article DOI No:- 10.18231/j.ijmmtd.2020.024, IP International Journal of Medical Microbiology and Tropical Diseases-IP Int J Med Microbiol Trop Dis