Inclusion Criteria:  Individuals informed of the conduct of the research and having given their written consent to participate in the study (questionnaire and taking physical measurements); Individuals between the ages of 18 and 64; Individuals residing in New Caledonia in so-called "ordinary" housing under their main residence at the last population census in 2019;  Exclusion Criteria:  Pregnant or breastfeeding women; Tourists and transients staying in New Caledonia for less than 6 months at the time of the investigation; People who are not intellectually fit to answer the questionnaire; Persons subject to guardianship, curatorship or any other legal incapacity; For the second phase of the study will be excluded people describing a febrile syndrome;