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 is caused by ticks; if your dog is infected with Lyme disease, you can also catch this disease. Lyme disease may be fatal in dogs and can seriously affect children or people with a compromised immune system.ingworm. The ringworm disease is determined by the presence of fungi that are located on the surface of the dogâs skin and may be transmitted to humans also. The ringworm may cause hair loss in a ring shape in canines; in humans, the fungi may lead to skin irritations and can cause nail infections.