Notifiable Disease

A notifiable disease is a disease that must be reported to a designated public-health authority when a case meeting the prescribed reporting criteria is identified. Notification is a mandatory reporting requirement established through applicable laws, regulations or government orders, rather than merely a recommendation to share health information. Its purpose is to help authorities detect health threats and organise an appropriate response.

What notification requires

The notification requirement specifies which disease must be reported, who must report it, the receiving authority and the reporting procedure.

• The reporting obligation may apply to medical practitioners, laboratories or health facilities, including private providers, as specified by the applicable requirement.
• A case definition determines what qualifies for reporting; depending on the disease and reporting rules, notification may cover suspected cases, confirmed cases or both.
• Reports must contain the prescribed information and follow the specified timelines, allowing public-health authorities to assess and act on them.
• The list of notifiable diseases can differ across jurisdictions and change as public-health priorities change.

Why notification matters for surveillance

Notification supplies information to public-health surveillance, which involves the continuing collection, analysis, interpretation and use of health data for public-health action.

• Timely notification helps authorities identify unusual increases in disease occurrence and investigate possible outbreaks.
• For communicable diseases, reporting can support contact tracing, investigation of infection sources and measures to prevent further transmission.
• Accumulated reports help authorities assess disease patterns, plan health services and evaluate control measures.
• Notification is one source of surveillance data, not the whole surveillance system; surveys, laboratory networks and disease registries may provide additional information.
• Reported case counts may understate the true disease burden when cases remain undiagnosed or providers fail to report them.

Notification in India's health system

In India, notification requirements operate through applicable public-health laws and government directions. Tuberculosis was made a notifiable disease by the Government of India in 2012, requiring reporting by healthcare providers.

• A disease's seriousness alone does not make it notifiable; a formal reporting requirement must apply.
• Effective implementation requires participation by both public and private providers, clear reporting procedures and protection of sensitive patient information.
• Making a disease notifiable creates a reporting duty, but complete surveillance still depends on diagnosis, compliance and the capacity to analyse and use the information.