**ABSTRACT:**

In the study of HIV infection and AIDS, the estimation of expected time to Seroconversion and its variance is an important aspect. As and when the total antigenic diversity crosses a threshold level, the Seroconversion takes place. In this paper, assuming the threshold level undergoes a change in the form of distribution after a truncation point where the truncation point is taken to be a random variable. The distribution function for the threshold level is obtained by taking exponential distribution and Erlang 2 distribution as the threshold levels before and after the truncation point respectively. Using this distribution function for the threshold level, the expected time to Seroconversion and its variance are derived.

**KEYWORDS: **HIV infection, Seroconversion, Antigenic diversity

**DOI:**jusps-A**[XML]****[HTML]****VIEW COUNT:**33**DOWNLOAD PDF****TOTAL DOWNLOADS**

In the study of HIV infection and AIDS, the estimation of expected time to Seroconversion and its variance is an important aspect. As and when the total antigenic diversity...