Fiebre paratifoídea B en dos áreas de Santiago: un análisis de su significación epidemiológica / Paratyphoid B fever in Santiago, Chile: epidemiological significance

Salmonella isolates from 3920 patients with typho8id fever form 2 years in Santiago wetre analyzed to determine the frequency of association with S paratyphi B infection. This was demonstrated in 18.8% of subjects in both areas, a figure significantly higher than the 8-10% previously reported. the association S paratyphi B was higher for females, especially for the younger age agrupo. These findings suggest an infectious agentgender-age interaction which may explain the discrepancy with previously report rates of infection. Their possible relation to the chronic salmonella carrier state and association with biliary tract lithiasis and cancer is discussed