From: Moroccan strains of Leishmania major and Leishmania tropica differentially impact on nitric oxide production by macrophages
L. tropica strain
L. major strain
Ratio
10:1
5:1
Incubation time
24 h
4.0 ± 0.3
3.0 ± 0.3
48 h
3.0 ± 0.2
3.5 ± 0.5