Infectious conditions associated with loss of pregnancy in the bitch. Maternal environmental stresses Infectious agents gain access to the pregnant uterus via the blood stream or through the cervix. These can cause placental disfunction leading to fetal death and in some cases may infect fetuses directly. The most common bacterial cause of abortion in the bitch. Abortion occurs between 45 and 55 days of pregnancy.
Infertility follows infection and abortion.
Vaginal discharges and aborted fetal tissues are highly infectious to other females. Escherichia coli , Staphylococcus aureus , Streptococcus spp . Their role in causing abortion is unknown. May be associated with infertility, persistent vaginal discharge and repeat abortions in older bitches. Mycoplasma and Ureaplasma These are opportunistic organisms normally found in the vaginal canal.