From: Gene polymorphism analysis of Yersinia enterocoliticaouter membrane protein A and putative outer membrane protein A family protein
ompA+
ompA-
Total
p-ompA+
p-ompA-
Pathogenic strains
170
0
Biotype 1A strains ystB+
84
Biotype 1A strains ystB-
7
22
35
64
254
318