eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences August 2010 22 2 527 534 jusps-A 1001 article R. KANNAN 1 A. THIRUMURUGAN 1 R. SATHIYAMOORTHI 1 G. MALARVIZHI 2 Department of Statistics, Annamalai University, Annamalai Nagar- 608002 (INDA0 Department of Mathematics Eswari Engg. College, Rampapuram - Chennai, 89 (INDIA) <p style="text-align: justify;">The use of stochastic model in this study of HIV infection, transmission the spread of AIDS is quite common .The time to seroconversion from the point of infection depends upon what is known as antigenic diversity which act against the immune ability of an individuals. If the antigenic diversity causes a particular level which is known as the antigenic diversity threshold, the immune system collapses and seroconversion takes place at once. To propose a stochastic model to study the damage process acting on the immune system is non- linear. The mean time to seroconversion and its variance are derived and the numerical illustrations are provided.</p> <p>&nbsp;</p> https://www.ultrascientist.org/paper/1001/ Acquired Immune Deficiency Syndrome Seroconversion Human immune Deficiency virus Cumulative Damage Process Antigenic Diversity Threshold