A notifiable disease or crime is one that must be reported to the authorities whenever it occurs, because it is considered to be dangerous to the community.
Many doctors fail to report cases, even though food poisoning is a notifiable disease.
notifiable in British English
(ˈnəʊtɪˌfaɪəbəl)
adjective
1.
denoting certain infectious diseases of humans, such as smallpox and tuberculosis, outbreaks of which must be reported to the public health authorities
2.
denoting certain infectious diseases of animals, such as BSE, foot-and-mouth disease, and rabies, outbreaks of which must be reported to the appropriate veterinary authority