It was evident that the fever, nausea and loss of appetite Vlastimil Gajdoš felt on his wedding day was not a mere case of cold feet. Gajdoš, 65, fell ill in Honolulu in March after arriving with his bride-to-be from the Czech Republic. He and Sylva Di Sandro, 58, intended to marry and honeymoon on the island. While they did tie the knot, they also engaged in serious battle with the novel coronavirus. He was in the hospital for two weeks, some of it in intensive care, on a ventilator. Like many visitors to the U.S., who are aware that health care prices here can be higher than back home, Gajdoš purchased a travel insurance plan that covered up to $300,000 in medical expenses. But after Gajdoš was diagnosed with COVID-19 and his wife called to check whether his care would be covered, the newlyweds discovered a catch: The insurer said it wouldn’t pay upfront. And it would consider reimbursing the couple only after Gajdoš was released from the hospital. “I was really afraid that they ...