11. Lassa fever . . . yellow fever . ..12. Replication competent rVSV has also been created expressing proteins of Lassa fever and Marburg virus. 13. Conditions are ideal for the spread of lassa fever . 14. Lassa fever causes hemorrhagic fever frequently shown by immunosuppression.15. An outbreak of Lassa fever occurs in Benin, with 71 suspected cases including 23 deaths. 16. This looks like the most severe epidemic of lassa fever in this region to date. 17. In 1969 he worked on isolating the Lassa fever virus with Jordi Casals-Ariet and Sonja Buckley. 18. Tuberculosis and Lassa fever are also common. 19. A laboratory accident during that research resulted in two scientists'becoming infected with Lassa fever , and one died. 20. Still another hemorrhagic fever is Lassa fever , which can be treated early on with an antiviral drug.