Because reporting laws vary from state to state, this list isn't conclusive and may be changed periodically. Local agencies report certain diseases to their state health departments, which in turn determine which diseases are reported to the Centers for Disease Control and Prevention (CDC).
Acquired immunodeficiency syndrome (AIDS)
Anthrax
Botulism, foodborne
Botulism, infant
Botulism, other (wound and unspecified)
Brucellosis
Chancroid
Chlamydia trachomatis, genital infections
Cholera
Coccidioidomycosis
Cryptosporidiosis
Cyclosporiasis
Diphtheria
Ehrlichiosis
Encephalitis/meningitis, arboviral
Enterohemorrhagic Escherichia coli
Giardiasis
Gonorrhea
Haemophilus influenza, invasive disease
Hansen's disease
Hantavirus pulmonary syndrome
Hemolytic uremic syndrome, postdiarrheal
Hepatitis A, acute, chronic
Hepatitis B, acute, chronic
Hepatitis B, perinatal infection
Hepatitis C, acute, chronic
Human immunodeficiency virus (HIV) infection
Legionellosis
Listeriosis
Lyme disease
Malaria
Measles
Meningococcal infections
Mumps
Pertussis
Plague
Poliomyelitis, paralytic
Psittacosis
Q fever
Rabies, animal
Rabies, human
Rheumatic fever
Rocky Mountain spotted fever
Rubella
Salmonellosis
Shigellosis
Streptococcal disease, invasive, Group A
Streptococcal toxic-shock syndrome
Streptococcus pneumonia, drug resistant, invasive disease
Streptococcus pneumonia, invasive in children over age 5
Syphilis, all stages
Syphilis, primary and secondary
Syphilis, congenital
Tetanus
Toxic shock syndrome
Trichinosis
Tuberculosis
Tularemia
Typhoid fever
Varicella
Yellow fever