Patient Zero

by Colin O’Leary figures by Rebecca Clements News of viral epidemics spreads faster than the viruses themselves. Once the virus arrives, how do we determine where it came from? How do scientists monitor the arrival and spread beyond keeping track…

High-resolution microscope image of an immune cell infected with HIV [Image: ‘HIV-infected T Cell’ from NIAID]Gaeten Dugas, the man who received the title “Patient Zero” for supposedly bringing HIV/AIDS into the United States, has been…