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.
In endemic areas (including Massachusetts), annual screening tests for Lyme disease are recommended. If your dog does develop clinical illness from Lyme disease, the most common signs are lameness, fever, lethargy, and enlarged lymph nodes. Clinical illness is expected 2-5 months after infection. The majority of dogs respond very well to antibiotic treatment with Doxycycline or Amoxicillin.