Diseases to be reported – Ohio Admin. Code 3701-3-02

Reportable diseases that are dangerous to the public health are classified by classes “A”, “B”, and “C”.  The occurrence of cases or suspected cases of disease in any of these classes must be reported in detail by health care providers and laboratories to the board of health as required.  The reportable diseases, by class, are as follows:

• Class A diseases are diseases of major public health concern because of the severity of disease or potential for epidemic spread and must be reported immediately via telephone:
  • Anthrax
  • Botulism, foodborne;
  • Cholera;
  • Diphtheria;
  • Influenza “A” – novel virus infection;
  • Measles;
  • Meningococcal disease;
  • Plague;
  • Rabies, human;
  • Rubella (not congenital);
  • Severe acute respiratory syndrome (“SARS”)
  • Smallpox;
  • Tularemia
  • Viral hemorrhagic fever (“VHF”);
  • Yellow fever; and
  • Any unexpected pattern of cases, suspected cases, deaths or increased incidence of any other disease of major public health concern, because of the severity of disease or potential for epidemic spread, which may indicate a newly recognized infectious agent, outbreak, epidemic, related public health hazard or act of bioterrorism.
• Class B diseases are divided into two types.  The first type are diseases of significant public health concern needing timely response because of potential for epidemic spread, and must be reported by the end of the next business day after the case or suspected case presents.  These diseases are as follows:
  • Arboviral neuroinvasive and non-neuroinvasive diseases:
    • Eastern equine encephalitis virus disease;
    • LaCrosse virus disease (other California serogroup virus disease);
    • Powassan virus disease;
    • St. Louis encephalitis virus disease;
    • West Nile virus infection;
    • Western equine encephalitis virus disease;
    • Other arthropod-borne disease;
  • Chancroid;
  • Coccidioidomycosis;
  • Cyclosporiasis;
  • Dengue;
  • E. coli O157:H7 and Shiga toxin-producing E. coli (STEC);
  • Granuloma inguinale;
  • Haemophilus nfluenza (invasive disease);
  • Hantavirus;
  • Hemolytic uremic syndrome (“HUS”);
  • Hepatitis A;
  • Hepatitis B (perinatal);
  • Influenza-associated pediatric mortality
  • Legionnaires’ disease;
  • Listeriosis;
  • Malaria;
  • Meningitis;
    • Aseptic (viral);
    • Bacterial; 
  • Mumps; 
  • Pertussis;
  • Poliomyelitis (including vaccine-associated cases); 
  • Psittacosis; 
  • Q fever;
  • Rubella (congenital);
  • Salmonellosis;
  • Shigellosis;
  • Staphylococcus aureus, with resistance or intermediate resistance to vancomycin (“VRSA”, “VISA”);
  • Syphilis;
  • Tetanus;
  • Tuberculosis (“TB”), including multi-drug resistant tuberculosis (“MDRTB”); and
  • Typhoid fever.
• The second type of Class B diseases are diseases of significant public health concern, which must be reported by end of the business week in which the case or suspected case presents.  Such diseases are as follows:
  • Amebiasis;
  • Botulism;
    • Infant; 
    • Wound;
  • Brucellosis;
  • Campylobacteriosis;
  • Chlamydia infections (urethritis, epididymitis, cervicitis, pelvic inflammatory disease, neonatal conjunctivitis, pneumonia, and lymphogranuloma venereum);
  • Creutzfeldt-Jakob disease (“CJD”);
  • Cryptosporidiosis;
  • Cytomegalovirus (“CMV”) (congenital);
  • Ehrlichiosis/anaplasmosis;
  • Giardiasis;
  • Gonococcal infections (urethritis, cervicitis, pelvic inflammatory disease, pharyngitis, arthritis, endocarditis, meningitis and neonatal conjunctivitis);
  • Hepatitis B (non-perinatal);
  • Hepatitis C;
  • Hepatitis D (delta hepatitis);
  • Hepatitis E;
  • Herpes (congenital);
  • Influenza-associated hospitalization;
  • Leprosy (“Hansen Disease”);
  • Leptospirosis;
  • Lyme disease;
  • Meningtis, including other bacterial;
  • Mycobacterial disease, other than tuberculosis (“MOTT”);
  • Rocky Mountain spotted fever (“RMSF”);
  • Streptococcal disease, group A, invasive (“IGAS”);
  • Streptococcal disease, group B, in newborn;
  • Streptococcal toxic shock syndrome (“STSS”);
  • Streptococcus pneumoniae, invasive disease (“ISP”);
  • Toxic shock syndrome (“TSS”);
  • Trichinosis;
  • Typhus fever;
  • Varicella;
  • Vibriosis; and
  • Yersiniosis.
• Class C diseases must be reported by the end of the next business day, and are outbreaks, unusual incidences or epidemics of other infectious diseases from the following sources: 
  • Community;
  • Foodborne;
  • Healthcare-associated;
  • Institutional;
  • Waterborne; and
  • Zoonotic;
• If an outbreak, unusual incidence, or epidemic has an unexpected pattern of cases, suspected cases, deaths, or increased incidence of disease that is of a major public health concern, then such outbreak, unusual incidence, or epidemic shall be reported immediately by telephone to the local health jurisdiction in which the case or suspected case resides, or if the residence is unknown, to the department of health.