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 a disease caused by a bacteria known as Borrelia burgdorferi. The disease is transmitted through the bite of a tick. Lyme disease is considered a zoonotic disease because it can infect both dogs and people.It does not appear to be a major threat for cats.nfection with canine Lyme disease is readily diagnosed through the use of a patient-side blood test. In some parts of the United States, the number of dogs with positive tests for Lyme disease is quite high. In the Northeast, as many as 50% of the dogs tested are found to be positive.