Brucella abortion in dogs typically occurs at which gestational range?

• A. 15-30 days
• B. 30-45 days
• C. 60-75 days
• D. 45-60 days

Answer: (D)

Brucella abortion in dogs tends to happen during late pregnancy when placental infection leads to placentitis and fetal loss. Since a dog’s gestation is about 63 days, the period from roughly day 45 to day 60 sits in the last third of gestation, which is when Brucella canis–associated abortions are most commonly observed. Abortion earlier in gestation is less typical because the infection more readily disrupts the placenta and late fetal development, whereas abortions near term would be less characteristic of this agent. So the 45–60 day window best fits the usual timing for Brucella-related abortion.