Ampicillin ResistanceAmpicillinPenicillin ResistanceR FactorsBacteriaAnti-Bacterial AgentsHaemophilus influenzaeEscherichia coliMicrobial Sensitivity TestsDrug Resistance, MicrobialEnterococcus faeciumbeta-LactamasesDNA, BacterialDrug Resistance, BacterialConjugation, GeneticPlasmidsPenicillinasePenicillinsChloramphenicol ResistancePenicillin-Binding ProteinsExtrachromosomal InheritanceTetracyclineDrug Resistance, Multiple, BacterialDrug ResistanceBacterial ProteinsHaemophilus ducreyiShigella sonneiTransformation, BacterialEnterobacteriaceaeHaemophilus InfectionsTransformation, GeneticTrimethoprimGram-Negative BacteriaDNA Transposable ElementsMolecular Sequence DataGram-Positive BacteriaPenicillin GMuramoylpentapeptide CarboxypeptidaseSulbactamStreptomycinGram-Positive Bacterial InfectionsGenes, BacterialPeptidyl TransferasesMutationSerine-Type D-Ala-D-Ala CarboxypeptidaseHexosyltransferasesChromosomes, BacterialBase SequenceCulture MediaFecesBacteria, AnaerobicDrug Resistance, MultipleDrug Resistance, NeoplasmPivampicillinRecombination, GeneticDNA Restriction EnzymesDNA, CircularCloning, MolecularPolymerase Chain ReactionDisease ResistanceNucleic Acid HybridizationGenesVascular ResistanceRNA, Ribosomal, 16SSequence Analysis, DNADrug Resistance, ViralChloramphenicolPhylogenyDNA, RecombinantBacteria, AerobicEnterococcus faecalisGentamicinsTetracycline ResistanceColony Count, MicrobialDNA, Ribosomalbeta-Lactam ResistanceWater MicrobiologyAnti-Infective Agentsbeta-LactamsCephalosporinsSulfamethoxazoleAmino Acid SequenceGenetic VectorsPlant DiseasesGram-Negative Aerobic BacteriaBacterial InfectionsStaphylococcus aureusGene Expression Regulation, BacterialSalmonellaPenicillanic AcidKlebsiellaSpecies SpecificityShigellaCloxacillinDysentery, BacillaryPhenotypePseudomonas aeruginosaAmoxicillinKanamycinProteus