Which of the following diseases is NOT caused by a virus?

Explanation

This question is asking us to identify the disease that is not caused by a virus. Let's look at the options given. Option A is rinderpest, Option B is maize rust, Option C is Newcastle disease, Option D is swine fever, and Option E is nasal scale. Out of these options, the disease that is not caused by a virus is maize rust, which is Option B. Maize rust is a fungal disease that affects maize crops. It is caused by a fungus called Puccinia polysora. It is important to note that most diseases are caused by either viruses, bacteria, fungi, or parasites. However, there are also other factors that can cause diseases, such as genetic mutations, environmental factors, and lifestyle choices. To learn more about this, please read the relevant sections of the recommended textbooks.