Rising bovine brucellosis outbreaks in Israel threaten dairy farms, public health BrucellosisOutbreaks OneHealthChallenge Genomic Epidemiology PublicHealth AnimalHealth Bovine Pathogen DairyFarms SmallRuminants Israel MicrobioSoc
By Dr. Priyom Bose, Ph.D.May 2 2023Reviewed by Benedette Cuffari, M.Sc. Brucellosis is a globally prevalent zoonotic disease that is caused by several species of the genus Brucella. Over 500,000 cases of brucellosis are reported annually. Despite the low mortality rate associated with brucellosis, acute and chronic infection significantly impacts the patient and healthcare system.
In 1984, B. abortus was eliminated by vaccinating cattle with the S19 vaccine and implementing strict regulations in the dairy industry. Despite Rev1 vaccination of small ruminants and practicing control measures, Israel has faced sporadic incidences of B. melitensis over the last decade. About the study A recent Microbial Genomics study analyzed all B. melitensis outbreaks that affected dairy farms in Israel from 2006 to 2021. The genomic epidemiology of B. melitensis could help elucidate the association between bovine and human infection with B. melitensis.
About 92% of isolates were obtained from 2015 onwards. A total of 23 incidents of brucellosis were investigated in dairy farms and animal husbandries during the study period, from which eighteen epidemiological clusters were derived. These clusters were associated with cattle from 19 different dairy farms that hosted 8,161 cows.
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