Drug resistance in microorganisms 10 Pesticide and Drug Resistance 7 Drug resistance 5 Pesticides and Drugs; Control, (New March 2000) 5 Anti-Bacterial Agents 4 Antibacterial agents 4 Bacterial diseases 4 Drug Resistance, Microbial 4 Biochemistry 3 Disease control 3 Drug Resistance, Bacterial 3 Genetics and Molecular Genetics (Wild Animals), (New March 2000) 3 Man 3 Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 3 Physiology and Biochemistry (Wild Animals), (New March 2000) 3 Taxonomy and Evolution 3 Anti-Infective Agents 2 Cattle 2 Drug Resistance 2 Drug therapy 2 Enzyme Inhibitors 2 Epidemiology 2 Genetic Engineering, Gene Transfer and Transgenics, (New June 2002) 2 Genetically engineered organisms 2 Genetics and Molecular Biology of Microorganisms, (New March 2000) 2 Goats 2 Host Resistance and Immunity 2 Mathematics and Statistics 2 Microbial enzymes 2 Nanotechnology 2