10-16 percent Lassa Fever 300,000 infections per year in Africa Lassa Fever Lassa fever virus 100,000 and 300,000 cases Lassa Fever https://www.cdc.gov/vhf/lassa/index.html 300,000 infections per year in Africa 10 to 16 percent Lassa Fever CDC - Lassa Fever Lassa fever Lassa fever Lassa fever https://www.cdc.gov/vhf/lassa/index.html المصدر الاول Lassa fever Lassa fever Lassa fever Lassa fever CDC - Lassa Fever Lassa fever -CDC Lassa fever 100,000-300,000 infections in west Africa every year -CDC Lassa Fever US Centers for Disease Control and Prevention https://www.cdc.gov/vhf/lassa/index.html Lassa Fever CDC’s Lassa fever webpage