68147979
Approaches to the Modelling of Aids
The spread of AIDS in Africa, Europe, North America and elsewhere in the world is causing considerable concern. It is known that the human immunodeficiency virus (HIV) attacks T-4lymphocytes in the bloodstream, thus causing a decline in the immune system. Serious infection by organisms usually kept under control follows: patients develop Pneumocystis carinii pneumonia, Kaposi’s sarcoma, chronic lymphadenopathy, dementia and various opportunistic infections. Infection by the HIV almost always leads to overt AIDS symptoms, which appear to be inevitably fatal; one problem of interest is the length of the incubation period, that is the time between HIV infection and the diagnosis of AIDS.
123977088
A simple deterministic epidemic in several related growing communities
This paper first considers a simple deterministic epidemic in a growing population. It then examines a simple deterministic epidemic in several related growing communities, where infection is transmitted between individuals both within and across the communities. An explicit parametric solution is derived for the number of susceptibles in these communities as a function of time.
126118485
Stochastic Models for Type Counts in a Literary Text
61484310
Random Allocation Methods in an Epidemic Model
A random allocation model is developed for the numbers of susceptibles in a group of n IVDU’s who become infected by i HIV-infectives sharing needles. A comparison of this model and the classical Reed-Frost model is outlined.
82131849
Processus stochastiques de population
150703032
Modelling the spread of HIV in prisons
This paper is concerned with models for the spread of HIV in prisons. We first consider a single prison of size N in which there is homogeneous mixing, and where there is an inflow and outflow of n< N prisoners at times t= 0, 1, 2,... Conditions are derived for the stability of the system. The interaction of such a prison with the outside world is then studied, and stability conditions obtained for this case. Finally, a quarantine policy is examined and its cost analyzed, both in the non-stable and stable cases.
122172360
OBITUARY: EDWARD JAMES HANNAN