Compared to workplaces in most other industries, ships crew are subject to increased risks from COVID-19 due to being confined in small spaces for extended periods of time in close proximity to other people. Because ships are at high risk of COVID-19 infection in port during crew changes, the EU & IMO recently issued urgent new guidelines requiring ships to implement pre-boarding screening of seafarers to help combat the escalating problem. The effect of an outbreak on a ship would be catastrophic in business and human terms. No-one wants a medevac, major diversion or let alone a preventable death to deal with, on top of everything else they’ve got on at the moment. More details here: https://www.martek-marine.com/blog/why-its-critical-for-ships-to-screen-crew-for-covid-19/