In some cases, as little as 100 milliliters (3.4 fluid ounces) can be fatal. A concentration of about 70 percent isopropanol or ethyl alcohol is most effective for killing germs. In general ...

Made up of 65 percent ethyl alcohol, hand sanitizers are formulated to kill nearly 100 percent of germs. But teenagers are using it to get drunk. Eight teens have recently been treated at San ...