Leentvaar-Kuipers, A.

infection dengue travel traveller den infection ratio health volume 7 study antibody medicine virus incidence health subject seroconversion sample destination post-travel den infections 37 ° c american journal journal fever american country disease serum subclinical elisa gubler illness science number dengue-like illness journey pre-travel cobelen april den igg ratio difference rigau-perez dengue infections volume season 331–338 hygiene blackwell den antibodies fl aviviruses risk factors factor post-travel samples month signi analysis population table person-month region epidemiology association serotype center episode japanese encephalitis virus post-travel serum samples paci fic region control south-east asia dengue virus infection study period travel duration indian subcontinent netherland attack near-signi ficantly dengue virus clinical-to-subclinical infection rate destination-speci fic irs pre-travel samples