TEXTE PARTIEL :
IDENTIFICATION, SURVEILLANCE, AND MANAGEMENT OF PATIENT CONTACTS
A contact is defined as a person who has been exposed to an infected person or to an infected person's secretions, excretions, or tissues within 3 weeks of the patient's onset of illness. Contacts may be subdivided into three levels of risk.
Any contact who develops a temperature of 101° F (38.3° C) or higher or any other syptoms of illness should be immediately isolated and treated as a VHF patient. Ribavirin should be prescribed as postexposure prophylaxis for high-risk contacts of patients with Lassa fever. Dosage schedules are given in the box on page 11. Although experience is more limited, postexposure prophylaxis with ribavirin is also recommended for high-risk contacth of patients; with CCHF.
Convalescent patients and their contacts should be warned that some of the causative agents of VHF may
continue to be excreted for many weeks in semen, as demonstrated with Marburg and Ebola viruses, and in urine, as occur sometimes with Lassa virus. It is recommended that the persons listed in the introduction be contacted about arranging shipment to CDC introduction be contacted about arranging shipment to CDC of seminal fluid and urine specimens from patients in the convalescent period for virus isolation.
Convalescent patients must be meticulous about personal hygiene. While data are limited concernig infectivity in the convalescent period, abstinence from sexual intercourse is advised until genital fluids have been shown to be free of the virus. If the patient does engage in sexual intercourse before tests are done, the use of condoms is advised.