Monocytes

Monocytes infected with HIV-1 (yellow-green) and non-infected monocytes (red). The cells originate from patients with the rare Aicardi-Goutières syndrome and were infected in cell culture. These cells do not have a functioning SAMHD1 and can therefore be infected by HIV-1. Source: Prof. Viviana Simon, Department of Microbiology, Mount Sinai School of Medicine, New York