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Maritime Declaration of Health


Instructions for Reporting Communicable Disease on Maritime Conveyances

The Public Health Agency of Canada (PHAC) requires that marine vessels report cases of communicable disease amongst passengers and crew upon entering Canada pursuant to section 34 of the Quarantine Act.

PHAC is asking for all ships to submit a medical declaration of health whether they have cases or not.


When to Contact the Public Health Agency of Canada

1(a). If a traveller has a fever of 38 degrees C or greater OR if a traveller has two (2) or more signs of fever (e.g. shivering, flushed skin,  excessive sweating, complains of feeling feverish);


1(b). The traveller has one or more of the following symptoms:

  • Difficulty breathing
  • Repeated cough
  • Diarrhea
  • Headache
  • Recent Confusion
  • Skin rash
  • Bruising/bleeding without previous injury


2. Also notify PHAC if:

  • A traveller appears obviously unwell
  • A traveller has a cough with blood
  • Death on board
  • Human remains are identified onboard


The person in charge of a vessel shall provide this Maritime Declaration of Health (MDOH) form. Notification is requested 48 hours or greater prior to arrival in Canadian waters. Should there be any change in the situation being reported, an updated report must be sent as required by the Quarantine Officer.

All Maritime Declarations of Health (new or updated) submitted 24 hours or less prior to arrival must be accompanied by a telephone call to CNS: 1-833-615-2384.

If email or telephone is not available, the operator may contact the nearest Maritime Communications and Traffic Services Centre by radio.

The person in charge of a vessel who wishes to change his port of destination after receiving instructions from a quarantine officer shall notify the quarantine officer of such change and request new instructions.

Cruise ships reporting gastrointestinal illness (GI) on board should continue reporting to the PHAC online GI surveillance system and should also submit a Maritime Declaration of Health.