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Volume 9, Number 5—May 2003

Research

Human Milk Secretory Antibodies against Attaching and Effacing Escherichia coli Antigens

Marita Noguera-Obenza*, Theresa J. Ochoa*, Henry F. Gomez*, M. Lourdes Guerrero†, Irene Herrera-Insua*, Ardythe L. Morrow‡, Guillermo Ruiz-Palacios†, Larry K. Pickering§, Carlos A. Guzman¶, and Thomas G. Cleary*Comments to Author 
Author affiliations: *University of Texas-Houston Medical School, Houston, Texas, USA; †Instituto Nacional de la Nutricion “Salvador Zubiran,” México City, México, D. F.; ‡Cincinnati Children’s Hospital, Cincinnati, Ohio, USA; §Center for Disease Control and Prevention, Atlanta, Georgia, USA; ¶GBF-German National Research Centre for Biotechnology, Braunschweig, Germany

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Table 2

Comparison of prevalence of secretory immunoglobulin A to enterohemorrhagic Escherichia coli antigens in milk samples collected from women from Mexico and the United States

          Antigen           Mexico (%) (N=73)           United States (%) (N=50)           p value
          O26
          58 (79)
          43 (86)
          NSa
          O55
          35 (48)
          16 (32)
          NS
          O111
          44 (60)
          31 (62)
          NS
          O127
          42 (58)
          19 (38)
          NS
          O128
          7 (10)
          20 (40)
          <0.0002
          O157
          25 (34)
          18 (36)
          NS
          Stx
          9 (12)
          11 (22)
          NS
          EspA
          68 (93)
          45 (90)
          NS
          EspB
          32 (44)
          14 (28)
          NS
          Intimin (C281γ)           20 (27)           16 (32)           NS

aNS, not significant by chi-square test.

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