Reportable Diseases & Conditions
Our Communicable Disease Team will investigate disease reports as well as provide guidelines for treatment, prophylaxis and infection control.
Healthcare Provider Reportable Diseases
Title 17, California Code of Regulations (CCR) §2500, §2593, §2641.5-2643.20, and §2800-2812 requires that healthcare providers report known or suspected cases of disease or condition, listed below, to the jurisdiction in which the patient resides. Failure to report is a misdemeanor (Health & Safety Code §120295) and is a citable offense under the Medical Board of California Citation and Fine Program (Title 16, CCR, §1364.10 and §1364.11)
Laboratory Reportable Diseases (June 2025)
Report Immediately By Phone During Business hours: (530) 265-1450 After hours: (530) 265-7880 |
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| Anthrax, human or animal |
Influenza, novel strains (human) | Plague, Human or Animal |
| Botulism (Infant, Foodborne, Wound, Other) |
Measles (Rubeola) | Rabies, Human or Animal |
| Cholera | Melioidosis | Scombroid Fish Poisoning |
| Ciguatera Fish Poisoning | Middle East Respiratory Syndrome
(MERS) |
Tularemia, human |
| Diphtheria | Monkeypox (Mpox) or orthopox virus infection | Viral Hemorrhagic Fevers,
human or animal (Crimean-Congo,
Ebola, Lassa and Marburg viruses) |
| Domoic Acid Poisoning
(Amnesic Shellfish Poisoning) |
Neisseria meningitidis (invasive
disease) |
|
| Flavivirus infection of
undermined species |
Novel Coronavirus Infection | Occurrence of ANY Unusual Disease |
| Foodborne Disease
(when two or more cases or
suspected cases of foodboorne
disease from separate households
are suspected to have the same
source of illness) |
Novel Virus with Pandemic Potential | Outbreak of ANY Disease (including
diseases not listed in §2500) |
| Human Immunodeficiency Virus (HIV), acute infection | Paralytic Shellfish Poisoning |
Report Within One Working Day By Phone: (530) 265-1450 By Fax: (530) 271-0836 |
|---|
| Babesiosis | Foodborne Disease | Q Fever |
| Brucellosis, human | Haemophilus Influenzae, invasive
disease (only in persons less than
5 years of age) |
Relapsing Fever |
| Campylobacteriosis | Hantavirus Infections | Salmonellosis (other than
Typhoid Fever) |
| Candida auris, colonization or
infection |
Hemolytic Uremic Syndrome | Shiga toxin (detected in feces) |
| Chickenpox (Varicella) (outbreaks, hospitalizations and deaths) |
Hepatitis A, acute infection | Shigellosis |
| Chikungunya Virus Infection | Legionellosis | Syphilis (all stages,
including congenital) |
| Coronavirus Disease 2019
(COVID-19) (hospitalizations only) |
Listeriosis | Trichinosis |
| Cronobacter sakazakii infections in
infants less than one year of age |
Malaria | Tuberculosis (TB) |
| Cryptosporidiosis | Meningitis, Specify Etiology:
(Viral, Bacterial, Fungal, Parasitic) |
Typhoid Fever,
Cases and Carriers |
| Cyclosporiasis | Multisystem inflammatory syndrome
in children (MIS-C) |
Vibrio Infections |
| Dengue Virus Infection | Paratyphoid Fever | West Nile Virus (WNV) Infection |
| Encephalitis, Specify Etiology:
(Viral, Bacterial, Fungal, Parasitic) |
Pertussis (Whooping Cough) | Yellow Fever |
| Escherichia coli: shiga toxin producing (STEC) including E. coli O157 |
Poliovirus infection | Yersiniosis |
| Psittacosis | Zika Virus Infection |
Report By Phone, Fax or Mail Within 7 Calendar Days By Phone: (530) 265-1450 By Fax: (530) 271-0836 Mail: Nevada County Public Health Dept., Attn: Communicable Disease, 500 Crown Point Circle, Ste. 110, Grass Valley, CA 95945 |
|---|
| Anaplasmosis | Hepatitis B (specify acute, chronic, or perinatal) |
Lyme Disease |
| Brucellosis, animal (except infections due to Brucella canis) |
Hepatitis C (specify acute,
chronic, or perinatal) |
Mumps |
| Chancroid | Hepatitis D (Delta)
(specify acute case or chronic) |
Respiratory Syncytial Virus-
associated deaths in laboratory- confirmed cases less than 5 years of age |
| Coccidioidomycosis |
Hepatitis E, acute infection |
Rickettsial Diseases (non-Rocky Mountain Spotted Fever), including Typhus and Typhus-like illnesses |
| Creutzfeldt-Jacob Disease (CJD)
and other Transmissible Spongiform Encephalopathies (TSE) |
Human Immunodeficiency Virus (HIV)
infection, any stage |
Rocky Mountain Spotted Fever |
| Cysticercosis or Taeniasis | Human Immunodeficiency Virus (HIV)
infection, progression to stage 3 (AIDS) |
Rubella (German Measles) |
| Ehrlichiosis | Influenza-associated deaths in
laboratory-confirmed cases less than 18 years of age |
Rubella Syndrome, congenital |
| Giardiasis | Leprosy (Hansen's Disease) | Silicosis |
| Gonococcal Infections | Leptospirosis | Tetanus |
| Tularemia, animal | ||