1.   Adding to the challenge facing doctors, he said, is the fact that each disease responds best to different antibiotics.

2.   But overuse of these drugs, coupled with the survival skills of the germs, have resulted in bugs that can resist the effects of different antibiotics.

3.   But three weeks later, after continuous doses of different antibiotics, the node was bigger than ever.

4.   Different antibiotics are effective against different strains of the bacteria.

5.   Different bacteria are sensitive to different antibiotics, and the drug you took before may do you no good now.

6.   It involves a small army of social workers making sure TB sufferers take their medicine, four different antibiotics, every day.

7.   Some plasmids carry a number of genes, each coding for resistance to a different antibiotic.

8.   Sometimes, that process requires experimentation with different antibiotics to see if they eliminate bacteria.

9.   The Argentinian study used a different antibiotic, roxithromycin, which is also effective.

10.   The next day, nauseated and in pain, she returned to the infirmary and Neri prescribed a different antibiotic, the complaint said.