Can some tell me what an infectious disease specialist doctor usually takes care of?

As below: Id specialists are trained in various infections, usage of antibiotics, antivirals, antifungals, sepsis etc. Including hiv, aids.

All infections: An id specialist treats all infections caused by micro-organisms including viruses, bacteria, fungi, protozoa and parasites. We treat infections of every organ of the body. Examples include pneumonia, pyelonephritis(kidney infection), osteomyelitis(bone infections), hiv/aids, meningitis, amoebic dysentery etc. Etc.