Epidemiology: Open Access

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Campylobacter Jejuni Infection in Israel: A National Study on Molecular Epidemiology

David Agmon

Over the past ten years, Israel has experienced an increase in the prevalence of Campylobacter infection, making it one of the industrialised nations with the highest rates, particularly among children under two years old. Using multiple methods, this study examined the molecular epidemiology of Campylobacter jejuni in Israel over a decade MLST (locus sequence typing) in conjunction with demographic data Select veterinary isolates (74) and representative clinical isolates from a sizable national repository were subjected to MLST. Using Poisson modelling, the distribution of age groups, ethnicity, and clinical source among different genotypes was assessed. The 512 isolates under study were given 126 different sequence types (STs), which were organised into 21 clonal complexes (CCs). Most human, chicken, and bovine STs grouped together among the top CCs. Since 2006, only three dominant STs have been identified. Patients carrying the most common CCs were similarly dispersed among densely populated areas. Patients with CC353 (relative rate (RR) 14 2.0, 95% CI 1.03e3.9, adjusted p value and CC42 infections had more blood isolates than those with CC257. Different age groups and ethnicities were distributed among the top CCs.