Table 1.

Notation used in model formulation

Term	Meaning
τ	The rate at which infection is spread through a contact
g	Recovery rate
[S], [I]	No. of susceptible, infected individuals
[Sn], [In]	No. of susceptible, infected individuals with n partners
[n]	No. of individuals with n partners
[SnIm]	No. of partnerships between an Sn and an Im
[nm]	No. of partnerships between individuals with n and m partners
[SnI] = ∑m[SnIm]	Total no. of infected partners of all Sns
[SI] = ∑m,n[SnIm]	Total no. of partnerships between an S and an I
[BnCmDp]	No. of triples with Cm having both Bn and Dp as partners