Monday, May 27, 2024
shipping and freight resource services
HomeInformationNewsMitigating the risk of quarantine and COVID-19 testing for seafarers

Mitigating the risk of quarantine and COVID-19 testing for seafarers

News - Shipping and Freight ResourceBy now, everyone is aware of the plight of the thousands of seafarers around the world who are either stuck on board ships even after their contract has expired or stuck in countries other than their own due to COVID-19 or in quarantine currently..

It has even resulted in several suicides among seafarers out of sheer desperation..

The COVID-19 pandemic has made it incredibly difficult to facilitate crew changes on ships and despite collaboration and cooperation with many stakeholders in the industry, this problem still remains unresolved and there are still around 200 000 odd seafarers estimated to be trapped on board..

Getting replacement crew has become a huge task for any shipowner/manager.. This is mainly due to

  • The availability or not of travel options from the seafarer’s home to the port. This may involve travel by road, sea and air and may involve crossing country borders. Transportation links remain limited in many areas and airlines may have their own individual requirements for testing prior to boarding an aircraft.
  • Entry restrictions and quarantine requirements in the country where the seafarer should join the ship. Some of these will not apply if countries identify seafarers as key workers.
  • The risk of new crew introducing Covid-19 onto the ship with subsequent cases on board that may affect the health and safety of the crew and impact ship operations.

As cases continue to rise across the world, especially in many of the “crewing countries” there is a lot of pressure on Governments, ship owners, seafarers and the international agencies to agree on a standard protocol to mitigate the risk of seafarers introducing Covid-19 onto a ship when the crew is changed and to reassure countries where crew change is to take place that seafarers are a low-risk group for the transmission of Covid-19..

Towards this objective, the International Maritime Health Association (IMHA) has reviewed the current evidence and is in the process of obtaining additional information on current practices around the world, along with the International Chamber of Shipping (ICS)..

But since the exact science in this field is currently lacking, the IMHA have created an interim paper providing a best practice approach based on common sense to mitigate the risk of transmission of Covid-19 in seafarers joining the ship..

Here is what the interim paper says..

Recommended quarantine and testing requirements for seafarers joining a ship

As a gold standard, IMHA recommends that all seafarers leaving their home country to join a ship should be tested before they travel to the port of joining.

Upon arrival in the port where they are to join a ship, seafarers should quarantine for 2 weeks in suitable accommodation, preferably ashore, arranged and paid for by the shipping company.

Seafarers should be tested at Day 3 to 5 after arrival in the country and at the end of this period of quarantine.

quarantine and testing requirements seafarers
Figure 1 Recommended quarantine and testing requirements before joining a ship


If quarantine in the port or country of joining a ship is not possible, seafarers may quarantine for 2 weeks in their home country, prior to travel.

This can either be at home, if appropriate or in accommodation arranged and paid for by the shipping company. Again testing should be done at the beginning and end of this quarantine period prior to travel.

Once the seafarers have arrived in the country where they will join their ship, they should be tested again if they are not going to join the ship for 3 to 5 days.

If they are to board within 3 days of arriving in a country this test is probably not worthwhile. If no further test is possible (or the result is not available), the seafarer should follow shipboard self-distancing (SSD) for the first 14 days onboard or until a negative test result is available.

More information on this is available in the ICS publication, ‘Coronavirus. Guidance for Ship Operators for the Protection of the Health of Seafarers’.

When seafarers are travelling at any time, they should avoid others as much as possible. Handwashing, physical distancing and good respiratory etiquette must be observed and a medical facemask may be advised.

The use of Personal Protective Equipment (PPE) is outlined in the EU Healthy Gateway Document, ‘Who, Where, How’. The World Health Organisation (WHO) will also publish a document covering this subject shortly.

Whilst 14 days of quarantine is advised, it may be very difficult to facilitate particularly in crewing patterns with a leave period of just a couple of weeks.

A quarantine period of 10 or even 7 days is accepted in some countries when combined with two separate tests and self-reporting of symptoms. A reduction of the quarantine time must be part of a full risk assessment of the crew change policy and an approval by a competent authority or person.

Irrespective of which policy is followed, if any of the tests are positive or the seafarer develops any symptoms suggestive of Covid-19, the seafarer should receive treatment as appropriate and must not join the ship until they are considered free of the virus and non-infective to others.

Unpublished data from one clinic has found that 1% of tests done in seafarers planning to join a ship were positive and these seafarers were successfully prevented from travelling to, and joining, the ship.


Facilities for quarantine

Any facility used for the quarantine of seafarers, if not the seafarer’s home, should provide them with at least three meals a day and access to additional food and drink.

The seafarer must have access to laundry facilities during the quarantine period and there should be a TV and free Wi-Fi available. Periods of planned outdoor exercise are essential and must be facilitated.

The seafarer must have access to medical advice by phone or in person at all times and to healthcare if this is required for any medical condition. If a seafarer experiences any symptoms suggestive of Covid-19, for example, fever, dry cough and tiredness, they must contact a designated person immediately.



Testing should be by Polymerase Chain Reaction (PCR) test and from a nasal pharyngeal swab. The use of saliva in testing is currently in the trial stage although initial reports are promising.

A nasal pharyngeal swab can be taken by a health care professional or the seafarer can do it themselves, after instruction in person or from a video.

Self-swabbing has been shown to be almost as reliable as swabs taken by a health care professional but it is not an easy procedure to perform. However, access to health care professionals to perform the swab may be a limiting factor and self-swabbing should be considered.

Whilst a PCR test is considered the gold standard test, there is still a false negative rate of up to 30% reported in practice. The tests themselves are reported to be up to 95% sensitive but some tests are more accurate than others.

Ideally, no test should be used that is not approved by the World Health Organisation (WHO) or a regulatory agency such as the Federal Drug Administration in the United States or the Medicines and Healthcare products Regulatory Agency in the United Kingdom although this may be beyond the control of the shipping company.

However, errors can occur in testing due to a number of reasons that include but are not limited to:

  • Poor swab taking
  • Taking the swab too early in the illness
  • Issues in transportation and transport media
  • Delay in transport or analysis
  • Human error in interpretation and poor equipment in the laboratory. This may be a particular issue with the level of health infrastructure is poor and the numbers of skilled personnel are limited.

Further advice on testing can be found in an interim guidance document produced by the WHO.

Whilst every effort should be taken to ensure that all of these steps are optimised as far as possible it must be noted that any test result cannot be 100% reliable and the result must be interpreted by an appropriately trained person and in the context of any clinical findings and other information.

Equally, the test only gives a snapshot of the health of the seafarer at the moment it was taken and cannot predict future illness.

Rapid diagnostic tests to detect the virus antigen are not yet accurate enough for use outside of a research or health care setting.

The presence of antibodies cannot be used in this scenario as they cannot be detected until 7 to 14 days after infection and even then, questions remain about their reliability and what it means for future immunity.



An internationally agreed and implemented policy for the quarantine and testing requirements of seafarers joining a ship is essential in facilitating crew change. Ideally, the aviation industry will also accept the policy and thus ensure that no additional tests or periods of quarantine are required in order for the seafarer to travel.

In addition, seafarers must be considered as key workers to allow them ease of transportation and safe passage to and from their ships.

The maritime industry is responsible for the transport of about 90% of the world’s trade and throughout the current pandemic, it has striven to maintain supply chains and the delivery of essential cargoes, including food and medical supplies, whilst ensuring the continued health and welfare of the 1.6 million seafarers serving onboard ship.

It cannot continue to do this without changing crew as necessary and ensuring that appropriate steps are taken to reduce the risk of seafarers carrying Covid-19 on board. This interim paper outline what we believe is a common sense, best practice approach to achieve this aim.

Liked the content..??

Sign up below to receive the best and most reliable industry content for free from THE Definitive Online Resource for Shipping and Freight..




News Desk
News Desk
News Desk brings you the latest, freshest, trusted and verified news about the shipping and freight industry right to your mailbox. Stay subscribed for more free and useful content about shipping, freight, maritime, logistics, supply chain and trade.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.



Sign up below to receive the best and most reliable industry content for free from THE Definitive Online Resource for Shipping and Freight..



FBX - Freight Indices