Eastern Bloc countries such as the Soviet Union had high rates of population growth. In 1917, the population of Russia in its present borders was 91 million. Despite the destruction in the Civil War, the population grew to 92.7 million in 1926. In 1939, the population increased by 17 percent to 108.
Causes of Chronic Vomiting in Dogs Chronic vomiting can be caused by diseases of the gastrointestinal tract or can occur secondary to other systemic diseases. It is important to try to establish the cause of chronic vomiting.
Blood in a dog's stool may be caused by several factors, and stress may be one of them. Learn what causes stress-induced diarrhea with blood and mucus in dogs and how to help them. Causes of Dog Vomiting Bile. If your dog is vomiting yellow bile, there are many possible causes.