Viruses like hepatitis a and norovirus come from intestines. one of the most easiest and most effective ways to prevent spreading them is

How harmful is it to smoke a pack of cigarettes a week?

Which of the following methods had the highest risk of transmitting hiv? a) oral sex b) sharing needles c) sweat d) preseminal fluid

What are the symptoms of trichomoniasis in males? a. painful urination, a dark discharge from thepenis, with no itchingb. painful urination, a dark discharge from thevagina, with no itchingc. painful urination, a clear discharge from the vagina, and some itchingd. painful urination, a clear discharge from thepenis, and some itching