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Know Your ABCs: a Quick Guide to
Reportable Infectious Diseases in Ohio
from the Ohio Administrative Code 3701-3-02 & 3701-3-13

Class A Diseases
(1) diseases of major public health concern because of the severity
of disease or potential for epidemic spread - report by telephone immediately
upon recognition that a case, a suspected case,
or a positive laboratory result exists
Anthrax
Botulism, foodborne
Cholera
Diphtheria

Rubella (not congenital)
Severe Acute Respiratory
Syndrome (SARS)
Smallpox

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.

(2) diseases of pubic health concern needing timely response
because of potential for epidemic spread - report by the end of
the next business day after the existence of a case,
a suspected case, or a positive laboratory result is known

Arboviral neuroinvasive and
non-neuroinvasive disease
Eastern equine
encephalitis virus
disease
LaCrosse virus disease
(other California
serogroup virus disease)
Powassan virus disease
St. Louis encephalitis
virus disease
West Nile virus disease
(also current infection)
Western equine encephalitis virus
disease
Other arthropod-borne
disease

Influenza-associated
pediatric mortality
Legionnaires' disease
Listeriosis
Lymphogranuloma
venereum
Malaria
Meningitis, aseptic,
including viral
meningoencephalitis
Mumps
Pertussis
Poliomyelitis
(including vaccine-
associated cases)
Psittacosis
Q fever

(3) diseases of significant public health concern -- report by the end of
the work week after the existence of a case, a suspected case,
or a positive laboratory result is known
Amebiasis
Botulism, wound
Botulism, infant
Brucellosis
Campylobacteriosis
Chlamydia infections
(urethritis, epididymitis,
cervicitis, pelvic
inflammatory disease,
neonatal conjunctivitis and
pneumonia)
Creutzfeldt-Jakob
disease (CJD)
Cryptosporidiosis
Cytomegalovirus (CMV)
(congenital)
Ehrlichiosis

Kawasaki disease
(mucocutaneous lymph
node syndrome)
Leprosy (Hansen disease)
Leptospirosis
Lyme disease
Meningitis, including other
bacterial
Mycobacterial disease,
other than tuberculosis
(MOTT)
Reye syndrome
Rheumatic fever
Rocky Mountain spotted
fever (RMSF)
Streptococcal disease,
group A, invasive
(IGAS)

Class B Disease - the number of cases is to be reported by
the close of each working week
Influenza

Class C Diseases - report an outbreak, unusual incidence,
or epidemic by the end of the next working day
Blastomycosis
Conjunctivitis, acute
Histoplasmosis
Nosocomial infections of
any type
Pediculosis

Outbreak, unusual incidence, or
epidemic of other infectious
diseases of known etiology
not categorized as Class A,
Class B or Class C

Except as otherwise required for the Class A(1) diseases,
reports of cases and suspect cases and positive laboratory results
shall be in writing, and shall include the name and address of the
case, suspect case, or person from whom the specimen was taken.
A Board of Health may accept verbal reports by telephone
or other electronic systems approved by the Director within the same
time limitations. Reports shall include supplementary information
relevant to the case or laboratory reports as needed to complete
official surveillance forms provided or approved by the Director.

Cases of AIDS (acquired immune deficiency syndrome),
AIDS-related conditions, HIV (human immunodeficiency virus)
infection, perinatal exposure to HIV, and CD4 T-lymphocytes
counts <200 or 14% must be reported on forms and in a manner
prescribed by the Director.

For the downloadable version of this information please click HERE

Measles
Meningococcal disease
Plague
Rabies, human

Tularemia
Viral Hemorrhagic Fever (VHF)
Yellow Fever













Chancroid
Cyclosporiasis
Coccidioidomycosis
Dengue
E. coli O157:H7 and other
enterohemorrhagic (Shiga
toxin-producing) E. coli
Foodborne disease
outbreaks
Granuloma inguinale
Haemophilus influenzae
(invasive disease)
Hantavirus
Hemolytic uremic
syndrome (HUS)
Hepatitis A
Hepatitis B, perinatal

Rubella (congenital)
Salmonellosis
Shigellosis
Staphylococcus aureus,
with resistance or
intermediate resistance to
Vancomycin
(VRSA, VISA)
Syphilis
Tetanus
Tuberculosis, including
multi-drug resistant
tuberculosis (MDR-TB)
Typhoid fever
Waterborne disease
outbreaks





Encephalitis, other viral
Encephalitis, post-
infection
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)

Streptococcal disease,
group B, in newborn
Streptococcal toxic shock
syndrome (STSS)
Streptococcus pneumo-
niae, invasive disease
(ISP)
Toxic shock syndrome
(TSS)
Toxoplasmosis
(congenital)
Trichinosis
Typhus fever
Varicella
Vibriosis
Yersiniosis











Scabies
Sporotrichosis
Staphylococcal skin
infections
Toxoplasmosis