Duty of public to report diseases; list of reportable diseases; failure to comply or obstruction of duty; liability; penalties.
Wyo. Stat. Ann. § 11-19-102
in effect(a) Any person or government entity who knows or suspects that there is any contagious or infectious reportable disease among animals owned by or under their jurisdiction or any veterinarian who knows or suspects any reportable contagious or infectious disease on any premises or in any animal, shall immediately report the same to the state veterinarian. The state veterinarian shall establish and manage a list of reportable diseases for any contagious or infectious disease deemed by the state veterinarian to be a threat to domestic animals. During development of this list the state veterinarian shall consult with the Wyoming game and fish department's supervisor of veterinary research services. Information collected in response to the list of reportable diseases shall be considered confidential proprietary information. Access to any information collected under the list of reportable diseases shall be limited to the person who reported the disease and the state veterinarian, except that the state veterinarian may at his discretion notify any of the following:
(i) The Wyoming livestock board;
(ii) The state veterinary laboratory;
(iii) The Wyoming game and fish director only if the disease threatens wildlife;
(iv) Any state or federal inspector, public health official or peace officer who is actively involved in the investigation of an outbreak or suspected outbreak of the contagious or infectious disease;
(v) Owners of possible contact animals;
(vi) Adjacent landowners; or
(vii) Local area practicing veterinarians.
(b) The state veterinarian when he deems it to be in the best interests of animal health, or the state public health officer when he deems it to be in the best interests of human public health, may release to the public any information collected under subsection (a) of this section, except the identity of any individual who reported the disease or whose animals may have contracted the disease.
(c) A failure to report, or any attempt to conceal the existence of the disease or to willfully or maliciously obstruct or resist the veterinarian in the discharge of his duty is a misdemeanor. Any person who willfully or maliciously falsifies a report to the state veterinarian is guilty of a misdemeanor. Any person convicted of any of the above acts or omissions shall be punished as provided in W.S. 11-1-103.
(d) Any person who knows that they own or have in their possession any livestock as defined by W.S. 11-20-101(a)(iv) infected with any disease formally declared by the Wyoming livestock board, through rule and regulation, as being potentially economically devastating and for which there is a valid diagnostic test and who transfers ownership or possession of the livestock to another person, or who knowingly or through his own neglect allows the livestock to commingle with uninfected livestock, is liable for the economic damages caused by the spread of the disease to uninfected livestock. In addition to the conditions for liability and recovery set in subsection (e) of this section, damages shall be available under this subsection only to a transferee who accepts the diseased animal directly from the liable person and to the owner of an animal that becomes infected as the result of direct contact with the diseased animal. The burden of proving liability and damages under this section shall be upon the person claiming damages. Any person who files a claim for recovery under this subsection alleging facts known to be false is liable for three (3) times the damages caused by the false claim and reasonable attorney fees.
(e) No person who has received written notice that an animal is infected with a disease identified in subsection (d) of this section prior to acquiring ownership or assuming possession of the infected animal shall be entitled to the damages provided by subsection (d) of this section. No livestock sales or auction facility shall be subject to the liability imposed by subsection (d) of this section if:
(i) The existence of disease was not reported to the facility and the facility did not know of the existence of the disease; or
(ii) The facility provided written notice of the disease to the person claiming damages under subsection (d) of this section.
(f) Notwithstanding subsection (a) of this section, the state veterinarian shall provide testing information to the owner of an animal that has tested non-negative for brucellosis not later than three (3) days after receipt of the preliminary laboratory results.
Source: WY Statutes (Official Site)URL: https://wyoleg.gov/statutes/compress/title11.pdfFetched: 10/4/2026