Hospital in Mbeya, Tanzania. The first days after HIV infection are very important because sexual partners are exposed to extremely high risks of infection due to the subsequent high viral load in the infected person. Additionally, this period of time determines the further course of HIV infection. DZIF scientists from the Department of Infectious Diseases and Tropical Medicine at the Medical Center of the University of Mu-nich (LMU) and DZIF African partner institutions in Tanzania participated in a pro-spective, multinational study which investigated virological and immunological changes due to HIV - prior to the onset of clinical symptoms and commercial HIV testing windows.

Damien Esquerre with a python. A new study into pythons and boas has for the first time found the two groups of snakes evolved independently to share similar traits, shedding new light on how the reptiles evolved.

A virus that infects major freshwater bacteria appears to use stolen bits of immune system DNA to highjack their hosts' immune response.