Leg weakness most commonly arises from nerve compression in the lower back. Hence, pain in the lower back region should not be ignored, especially if it is longstanding. The shooting pain, which travels from the lower back to the knee or the ankle, is because of the irritation of the nerves caused by compression.
Heart disease is a serious medical condition in dogs, cats and humans. Cats do not normally develop arteriosclerosis or coronary artery disease, which are both common diseases in humans. In general terms, heart disease can be divided into two categories, congenital and adult onset forms.
A number of infectious diseases can be transmitted either congenitally or in early childhood, and can cause serious neurodevelopmental disorders, such as schizophrenia. Congenital toxoplasmosis may result in formation of cysts in the brain and other organs, causing a variety of neurological deficits.