Argentina is trying to solve a medical mystery after 57 sailors were infected with the COVID-19 after 35 days at sea, despite the entire crew testing negative before leaving port. The Echizen Maru fishing trawler is now docked at a port in the city of Ushuaia, as some of the sailors are hospitalized.

According to the ministry, 57 out of 61 crew members were diagnosed with the novel coronavirus after undergoing a new test. This is a mystery as all crew members had undergone 14 days of mandatory quarantine at a hotel in the city of Ushuaia. Two other sailors have tested negative, and two others are awaiting results.

Argentina's COVID-19 cases exceeded 100,000 on Sunday, while the death toll rose to 1,859.