Frequencies of the expression of main protein antigens from Helicobacter pylori isolates and production of specific serum antibodies in infected patients

Table 3 Detection results for the antibodies against UreB, VacA, CagA1, HpaA, NapA, FlaA and FlaB in sera of the patients.

Antibodies	Cases (n)	Positive standard value (A490)	Value range of samples (A490)	Positve cases (n)	Positive rates (%)
Anti-UreB	125	0.25	0.27-1.97	125	100
Anti-VacA	125	0.63	0.63-1.21	53	42.4
Anti-CagA1	125	0.46	0.56-1.05	112	89.6
Anti-HpaA	125	0.28	0.32-1.96	102	81.6
Anti-NAP	125	0.43	0.54-1.38	117	93.6
Anti-FlaA	125	0.44	0.52-1.76	123	98.4
Anti-FlaB	125	0.25	0.26-1.15	116	92.8