Sourcing seafarer vaccinations privately is an option for beleaguered ship managers that fear big problems ahead with "nationalism" in terms of the global Covid-19 response.

Delegates at the TradeWinds Ship Management 2021 webinar expressed fears that the world will become a patchwork of areas where different jabs are acceptable and others are not recognised.

Bjorn Hojgaard, chief executive of Anglo Eastern, said countries are beginning to realise the importance of vaccinations for crews.