Natural maternal transmission of H pylori in Mongolian gerbils

Table 1 Results of cultures and PCR for assessment of transmission of H pylori during pregnancy and at parturition day

Infectionstatus	Evaluatedtime	Subject	Detection rate of H pylori
			(No. of positive/No. of animal)
			Culture	PCR
Infected female	Pregnancy	Mothers	3/3	3/3
		Fetuses	0/23	0/23
	Delivery	Mothers	3/3	3/3
		Litters	0/21	0/21
	1-wk old	Mothers	3/3	3/3
		Fetuses	5/21	7/21
	3-wk old	Mothers	3/3	3/3
		Litters	11/23	16/23
Uninfected female	Pregnancy	Mothers	0/1	0/1
		Fetuses	0/7	0/7
	Delivery	Mothers	0/1	0/1
		Litters	0/9	0/9
	1-wk old	Mothers	0/1	0/1
		Litters	0/7	0/7
	3-wk old	Mothers	0/1	0/1
		Litters	0/7	0/7