21.   They carry special ammunition intended to stop an attacker or hijacker without penetrating the skin of the airplane.

22.   Although saliva from the animal must penetrate the skin to transmit the disease, doctors warned that no chances should be taken.

23.   Because it has the smallest molecule, Pineda said it can penetrate the skin more easily and fight wrinkles better than other AHAs.

24.   Bilharzia, also known as schistosomiasis, is transmitted by the larvae of water snails, penetrating the skin and colonizing the blood vessels of the intestine.

25.   Doctors blame the infections largely on the wire penetrating the skin, and the movement of the device as it pumps.

26.   If fired at the reinforced aluminum plates intended for the bulk of the international space station, the balls would penetrate the skin, de la Fuente says.

27.   Leahy had mixed nicotine with a solvent that allowed it to penetrate skin, enabling him to deliver a lethal dose with a few spritzes from a spray bottle.

28.   Must contaminated blood penetrate the skin?

29.   Wild ducks were reported to be carrying the bacteria, which then penetrates the skin, causing itching.

30.   Yet somehow it had penetrated her skin.