CLASS I DISEASES
Class I diseases include those with potential for rapid spread or requiring prompt action for effective control and should be reported by phone in addition to an official morbidity report form – do not wait for laboratory confirmation.
BY PHONE WITHIN 4 HOURS:
- Anthrax
- Botulism
- Hemorrhagic fevers (all forms)
- Plague
- Small Pox
- Tularemia
BY PHONE WITHIN 24 HOURS:
- Acute flaccid paralysis or myelitis
- Chikungunya, Dengue, Zika, etc. (arboviral diseases)
- Cholera
- Diphtheria
- Encephalitis, viral
- Fish poisoning (2 or more cases)
- Measles (Rubeola)
- Meningococcal disease
- MERS-Co virus
- Novel Influenza virus
- Pertussis
- Poliomyelitis (acute)
- Rabies (in man or animal)
- Rubella (including congenital)
- Severe Acute Respiratory Syndrome (SARS) [including SARS-CoV-2/COVID-19]
- Toxic-shock syndrome
- Trichinosis
- Typhoid Fever
- Typhus
- Yellow Fever
CLASS II DISEASES
Report individual cases of Class II diseases within 48 hours by phone, fax, mail or electronic submission* using the official morbidity report form. Please report unusual outbreaks or apparent epidemics immediately by phone.
- AIDS/HIV
- Amebiasis
- Brucellosis
- Campylobacteriosis
- Chancroid
- Chickenpox (varicella)
- Chlamydia trachomatis
- Coccidioidomycosis
- Conjunctivitis, viral or bacterial
- Cryptosporidiosis
- Cyclosporiasis
- Eosinophilic meningoencephalitis
- Enterococcus sp. VRE, vancomycin resistant
- Escherichia coli 0157:H7 or MDR or ESBL+
- Food or Fish poisoning (isolated cases)
- Giardiasis
- Gonorrhea
- Granuloma inguinale
- Haemophilus influenzae, invasive disease
- Hansen’s disease (leprosy)
- Hemolytic-uremic syndrome
- Hepatitis A, B, C, Δ or unspecified viral
- Herpes simplex Type 2
- Human papillomavirus (HPV)
- Influenza
- Kawasaki syndrome
- Legionellosis
- Leptospirosis
- Lyme disease
- Lymphogranuloma Venereum
- Malaria
- Meningitis, aseptic
- Meningitis, bacterial
- Mumps
- Myocarditis
- Paratyphoid fever
- Parvovirus B19 (Fifth disease)
- Rheumatic fever (active) & post-streptococcal glomerulonephritis
- Rickettsial disease
- Salmonellosis (non-typhoidal)
- Scabies
- Scarlet fever
- Shigellosis
- Staphylococcus aureus (MRSA or VRSA)
- Streptococcal disease (Group A)
- Streptococcus pneumoniae, penicillin resistant (PRSP)
- Streptococcal sore throat
- Syphilis
- Tetanus
- Tuberculosis
- Vibriosis
Download Reportable Disease List (PDF)
Recognizing that no list can include every disease that could possibly pose a threat to the residents of Guam, the Guam Department of Public Health and Social Services encourages the reporting of any additional disease cases with potential for serious public health impact or which may merit epidemiologic investigation.