Pilot Study to Detect DENGUE Virus in Sperm

Inclusion Criteria: * Patient male aged 18 to 45 years * Patient in acute phase of dengue virus infection and with clinical criteria (date of onset of known clinical signs) which if thet aren't specific can be highly evocative in an epidemic zone. For example: Fever, asthenia, rash, arthritis/arthralgia, myalgia, headache, conjunctivitis. * Detection of the dengue virus genome by reverse transcriptase polymerase chain reaction in the blood or urine * Patient who can move to the laboratory for samples * Patient having given his free and informed consent and having signed the consent * Patient affiliated with a social security scheme or equivalent Exclusion Criteria: * Patient with an ejaculation disorder or who cannot sperm collection or with a sperm volume abnormal (\<1,5 ml). * Patient under guardianship or under trusteeship * Patient already included in a research protocol