This document discusses several infectious diseases that can affect pregnancy: tuberculosis (TB), malaria, chickenpox, listeriosis, and intestinal parasites. It provides details on the symptoms, risks to mother and fetus, diagnostic tests, treatment and prevention for each disease. TB has a low infection rate in pregnancy but can cause complications. Malaria increases risks of anemia, hypoglycemia and fetal growth issues. Chickenpox can cause congenital infections or complications for the newborn. Listeriosis poses risks of stillbirth and neonatal death. Intestinal parasites like hookworms and roundworms are common in tropical areas.