نيجيريا تعلن أول حالة إصابة مؤكدة بـ “كورونا” في البلاد

Sierra Leonean nurse Veronica Koroma (L) and doctor Donald Samuel Grant (R) stand by a patient in the Lassa fever ward at Kenema Government Hospital in southeastern Sierra Leone February 7, 2011. The regular stream of Lassa fever patients, kept in an isolation ward, provide researchers with access to the virus. Staff hope their new diagnostic product will eventually be cheap, simple and robust enough to take into the field - comparable to current tests for malaria or HIV - replacing complicated laboratory procedures. Picture taken February 7, 2011. To match Reuters-Feature BIOTERROR-AFRICA/ REUTERS/Simon Akam (SIERRA LEONE - Tags: HEALTH SOCIETY) - GM1E72F06QC01