which disease could be classified as an infectious disease
Classifying Infectious Diseases. A patient may exhibit symptoms (subjective changes in body functions) and signs (measurable changes), which a physician uses to make a diagnosis. A specific group of symptoms or signs that always accompanies a specific disease is called a syndrome.Communicable diseases are transmitted directly or indirectly from one host to another. A contagious disease is one that is easily spread from one person to another.Noncommunicable diseases are caused by microorganisms that normally grow outside the human body and are not transmitted from one host to another. contagious disease is one that is easily spread from one person to another. Noncommunicable diseases are caused by microorganisms that normally grow outside the human body and are not transmitted from one host to another.