Asthenosphere Asthenosphere, Layer beneath the lithosphere. The asthenosphere is the layer of our planet that lies beneath the lithosphere. It was first named by J. Barrell, a British geologist when he divided the interior of the Earth into three parts. The lithosphere is the outer layer of the Earth that contains crustal plates.
It is wise, however, to have the test repeated by a different laboratory using a different technique (Western Blot). Mother cats with FIV pass antibody to their kittens whether the kittens become infected or not. So positive test results in kittens do not mean they harbor the virus of FIV. If kittens are positive, they need to be retested every two months until they are six months old to see if the test becomes negative. If the test is still positive at six month, they probably have the disease.
The disease is caused by a virus that is contagious and able to be passed from one cat to another. The contagious nature of the disease makes testing for FIV important. Identifying cats that test positive for feline AIDS allows cat owners to take precautions to help these cats lead longer, healthier lives.anleukopenia is a viral disease of cats, and is often called feline distemper. It is highly contagious and can be fatal, especially in young cats. It is one of the diseases for which cats are routinely vaccinated (the P in combination FVRCP vaccines). More Â».