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**HIV time hierarchy: winning the war while, loosing all the battles.**
*(English)*
Zbl 0971.92511

Summary: AIDS is the pandemic of our era. A disease that scares us not only because it is fatal but also because its insidious time course makes us all potential carriers long before it hands us our heads in a basket. The strange three stage dynamics of aids is also one of the major puzzles while describing the disease theoretically (Pantaleo et al., N. Engl. J. Med. 328 (1993) 327). Aids starts, like most diseases, in a peak of virus expression \([\)R.M. Zorzenon dos Santos, Immune responses: Getting close to experimental results with cellular automata models, in: D. Stauffer (Ed.), Annual Review of Computational Physics VI, 1999, pp. 159-202; R.M. Zorzenon dos Santos, S.C. Coutinho, On the dynamics of the evolution of HIV infection, cond-mat/0008081\(]\), which is practically wiped out by the immune system. However it then remains in the body at a low level of expression until later (some time years later) when there is an outbreak of the disease which terminally cripples the immune system causing death from various common pathogens. In this paper we show, using a microscopic simulation, that the time course of AIDS is determined by the interactions of the virus and the immune cells in the shape space of antigens and that it is the virus’s ability to move more rapidly in this space (its high mutability) that causes the time course and eventual “victory” of the disease. These results open the way for further experimental and therapeutic conclusions in the ongoing battle with the HIV epidemic.

### MSC:

92D30 | Epidemiology |

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\textit{U. Hershberg} et al., Physica A 289, No. 1--2, 178--190 (2001; Zbl 0971.92511)

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