It is unlawful for any person within the city to have under treatment or to own or have possession or control of any animal infected with glanders, farcy, tuberculosis, anthrax, or with any other infectious or contagious disease, to fail, refuse or neglect to report in writing to the health officer of the city, immediately upon obtaining information or knowledge that such animal is so infected, giving the location of such animal, the name of the disease with which the same is infected, if known, and the name and address of the owner thereof, when known. (Prior code §§ 56000, 56004)