Captain Tejinder Singh has not set foot on dry land in more than seven months. He is not sure when he will go home. Singh is among tens of thousands of ship workers stuck at sea as the coronavirus spreads on land. He said sailors like him are not valued. He added, "We are forgotten...” Singh and most of his 20-person crew have traveled from India to the United States then on to China. He spoke to the Reuters news service from the Pacific Ocean as his ship now heads to Australia. They are among about 100,000 ship workers stuck at sea, says the International Chamber of Shipping, or ICS. Many sailors have been on their boats much longer than their usual 3 to 9 month work periods. Another 100,000 workers are stuck on land and unable to work and earn a living. The Delta variant of the coronavirus is spreading very quickly in parts of Asia home to many of the world’s 1.7 million ship workers. That has led many countries to restrict land access to visiting workers. Some workers have even been barred from medical treatment. The ICS estimates that just 2.5 percent of ship workers have been vaccinated. The United Nations calls the situation a crisis at sea. The organization says governments should consider commercial sailors essential workers. Ships deliver around 90 percent of the world's trade. The crisis threatens worldwide supply for everything from oil and metal to food and electronics.