PCR can detect the virus as well as identify the type of herpes virus. Because this test is more sensitive than culture, it is useful in circumstances where the virus is present in low numbers (such as viral encephalitis) or if the lesion is several days old.
After a brief stop at Jamaica, Columbus sailed to Central America, arriving at Guanaja (Isla de Pinos) in the Bay Islands off the coast of Honduras on 30 July. Here Bartolomeo found native merchants and a large canoe, which was described as being long as a galley and filled with cargo.
Columbus returned to Jamaica during his fourth voyage to the Americas. He had been sailing around the Caribbean nearly a year when a storm beached his ships in St. Ann's Bay, Jamaica, on 25 June 1503. For a year Columbus and his men remained stranded on the island, finally departing in June 1504.