New Caledonia, Disjointed Ranting, Conifer Dungeons, Biogeography of Southern Hemisphere Lineages, Mosquitoes

Did I contract Dengue Fever yesterday on Moo Mountain whilst hiking to a relict population of Araucaria humboldtensis? Was New Caledonia submerged for 20 million years and then recolonized by numerous ancient lineages of plants? Will I be broke after returning from my visit here?