The Strange Beauty Of Viruses Under The Microscope




Merck Veterinary Manual

This disease is caused by a parasite of ruminants, infecting red blood cells. It’s usually transmitted by ticks, by the use of surgical, dehorning, castration, and tattoo instruments and hypodermic needles that are not disinfected between uses. This disease may cause a severe anemia and result in cardiovascular changes such as an increase in heart rate.



Meningitis is an acute inflammation of the protective membranes covering the brain and spinal cord. Because of the inflammation’s proximity to the brain and spinal cord, it can be life-threatening and it’s classified as a medical emergency. The inflammation may be caused by infection with viruses, bacteria, or other microorganisms, and by certain drugs.