Epidemiology is the study of factors affecting the health and illness of populations. The specialist is called an epidemiologist.
Virologist
A pediatrician.A pediatricianPediatricians are medical doctors that specialize in dealing with children.
A neurologist is a specialist in the study of the nervous system, including the brain and spinal cord.
The medical term for a specialist in the study of the effects of diseases on organ or system functions is a pathophysiologist.
Epidemologist
An orthopedist is the medical specialist who treats diseases and disorders of muscles.
One who devotes himself to some specialty; as, a medical specialist, one who devotes himself to diseases of particular parts of the body, as the eye, the ear, the nerves, etc.
The medical term for a specialist in the study of the elderly is "geriatrician." Geriatricians focus on the healthcare needs of older adults and address issues related to aging, such as cognitive decline, chronic diseases, and functional impairments.
An Imunologist works on preventing communicable diseases. A Nutritionist works on preventing dietary deficiency diseases. An Internist is a physician who works on preventing the beginning of or the negative effects of preventable diseases and chronic diseases.
A hematologist is the name for a scientist or physician who studies blood and its diseases. See the link below.There are many diseases that can be found in the blood such as anemia, malaria,and Thelassemia.
A skin specialist is a "dermatologist".
Cardiologist. (Also, cardiovascular surgeon and vascular surgeon.)