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Effects of conalbumin bound iron on the growth of Salmonella paratyphi B and Salmonella thompsonMason, John Nicholas 01 January 1991 (has links)
I have investigated the possibility that specific conalbumin (ovotransferrin) iron saturation levels enable less virulent strains of Salmonella to become more virulent. Iron starved cells of two pathogenic Salmonella strains, S. paratyphi B var. java and S. thompson, were cultured in iron limited media at 3 different iron conalbumin saturation levels. Results indicate that strains differ significantly at both low and high iron saturation conalbumin. These differences depict a growth advantage for S. paratyphi B which correlates with reports by the Centers for Disease Control that S. paratyphi B was 3 times more frequent in blood isolates than S. thompson. The ability to use protein bound iron may account for the higher involvement of S. paratyphi B in bacteremia.
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