The health query is for my grandchild, a 9yr old boy who's Monocyte count is high as of Monday 8/22 he was taken to the hospital with a very high fever that did not reduced even after being given Tylenol. after the blood count the doctor diagnosed a viral fever, although I am clear about the funcion of the mocytes what concerns me is what infection is there that elevated the monocytes. Is it possible to know the type of infection that triggered the monocytes? thank you My name is Ruth Durand and I am 60 yrs, I am concern about my grandchild.