An environmental cause can include a drug, alcohol or a disease the mother has that can increase the chance for the baby to be born with a birth defect. An agent that can cause a birth defect is known as a teratogen. Multifactorial birth defects are caused by a combination of genes and environmental exposures.
National Rescues. Lyme Disease May Cause Sudden Aggression in Dogs Written by Betsy Sommers of. Peppertree Rescue, Albany, NY, USA. 28th May 2004: We recently had a very strange event that I think we should share around the rescue community. A Young (~2 years) Lab mix, male, came into our program with a questionable background.
Lyme disease, named for a town in Connecticut where it was first properly discovered in the mid-1970s, is easier to spot and more dangerous in humans than it is in dogs. Lyme disease in dogs is far less common, but it can be a problem, particularly in areas with high tick concentrations.In America, problem areas for Lyme disease include New England, the upper Midwest, and the West Coast.ymptoms of Lyme disease. When they do show up, signs of Lyme disease in dogs may include a number of symptoms held in common with other diseases and disorders, so proper diagnosis is key. The symptoms of Lyme disease in dogs include pain and swelling in the joints.