The first human retroviruses have been discovered during the past six years. They cause
two diseases which involve disturbances of the growth of the T4 lymphocyte, a remarkably …

It is currently accepted that a positive Western blot (WB) HIV antibody test is synonymous
with HIV infection and the attendant risk of developing AIDS. In this communication we …

The main scope of mathematical modelling in epidemiology is clearly stated in the second
edition (1975) of Bailey's book [19]:” we need to develop models that will assist the decision …

In 1983, CDC published a document entitled" Guideline for Isolation Precautions in
Hospitals"(2) that contained a section entitled" Blood and Body Fluid Precautions." The …

A compartmental model is presented for the spread of HIV in a homosexual population
divided into subgroups by degree of sexual activity. The model includes constant recruitment …

Epidemiological and behavioral factors crucial to the dynamics of HIV/AIDS include long and
variable periods of infectiousness, variable infectivity, and the processes of pair formation …

The envelope (env) and structural (gag) gene products of human T-cell leukemia
(lymphotropic) virus type III were identified by immunoaffinity chromatography …

By the end of 1987, nearly 50,000 cases of acquired immunodeficiency syndrome (AIDS)
had been reported since 1981, 20,745 in the past year alone. Black and Hispanic adults and …

This paper examines a multigroup epidemic model with variable population size. It is shown
that even in the case of proportionate mixing, multiple endemic equilibria are possible. The …

Human immunodeficiency virus (HIV) has been associated with acquired immunodeficiency
syndrome and related disorders. Assays to detect antibodies to HIV proteins have been …