11.   But Dr. Doherty expressed surprise on being told that Dr. Ildstad said that he had demonstrated that rat immune systems functioned in mice to fight mouse infections.

12.   But viruses bristle with different antigens, and the body responds by churning out many kinds of antibodies, not all of which can fight an infection.

13.   But the strong antibiotics administered to fight the infection served to worsen, rather than improve, his condition.

14.   Chemotherapy also destroys the white blood cells that fight infections.

15.   Doctors at the center spent five hours in surgery with Travis, pumping him full of antibiotics to fight infection.

16.   Doctors prescribe antibiotics as a way to fight infection.

17.   Doctors consider human skin the best covering for fighting infection, preventing dehydration, and promoting new skin growth.

18.   Doctors had pumped so much fluid into Kaitlin to fight the infection that she was nearly unrecognizable because of swelling.

19.   Early post-mortem reports suggest that they died of a parasitic infection, although suspicion has also fallen on medication used to fight the infection.

20.   He was among the first doctors to use sulfas, a family of drugs fighting bacterial infections, for burns and peritonitis.