Stillbirths and underweight foetuses as consequence of infection. C57BL/6 pregnants were infected i.v. on G13 (K173 or NK65) or on G10 (ANKAΔpm4) with 106 IE. Number of stillbirths (dead foetuses and/or reabsorptions) per mother in utero (A) and viable and non-viable foetuses weight (B) were accessed at G18 or G19. **p<0.01; ***p<0.001; NI: non-infected. Cut-off for non-viability was established in non-infected pregnant mice (dashed line).