STD & HIV

HI All,

Could some one help me out by sharing some information,

I would like to know what is the possibility of a person contracting HIV by receiving  oral sex if he already infected with a STD and is unaware of it.  since i have read all through the forum saying that oral sex is zero risk or no risk factor due to saliva
......

[kpq]

hi,

Unprotected Oral sex is the no risk sex. But while unprotected oral sex carries risk for few STDs.
Despite of having STD, the chance of contracting hiv in U.P oral sex, is very negligible