What is hematology? Hematology is the study of blood and blood disorders. Hematologists and hematopathologists are highly trained healthcare providers who specialize in diseases of the blood and blood components. These include blood and bone marrow cells. Hematological tests can help diagnose anemia, infection, hemophilia, blood-clotting disorders, and leukemia.
Roseola is a viral illness that usually affects children between the ages of six months and two years. It is typically marked by several days of high fever, followed by a pinkish-red flat or raised rash that appears on the child's torso and spreads over the body as the fever breaks.
1 Roseola. 2  In this case there is usually a high fever for a few days without any other obvious symptoms. 3  The fever then stops and while your child seems as if they are returning to their normal state of health, there is a rash that looks like red spots. 4  It can start on the upper part of the body and then spread. Typically there is fever as well. 2  The rash can then spread to other parts of the body. 3  Roseola. 4  In this case there is usually a high fever for a few days without any other obvious symptoms.