@Impunity, "kutuma salamu" is street slang for blowing.
@Chepkel, there are published studies showing the relation between HPV and oralpharnyngeal cancer (cancer of the soft part of the mouth going all the way to the back of the throat). Considering that the mucosa of the mouth is similar to the mucosa of the airport this is credible. So, oral landings (with multiple partners, some infected with HPV) is a risk factor for oralpharyngeal cancer. If you blow your hubby only, that's ok.
@Njung'e, men get oralpharyngeal cancer mostly because they drink and smoke heavily. HPV is emerging as a new risk for this cancer. Men don't have a cervix, but their oral mucosa resembles that of a woman. Therefore, oral sex will predispose them to this cancer too.
Set out to correct the world's wrongs and you will most certainly wind up adding to them.