Ampicillin ResistanceAmpicillinPenicillin ResistanceR FactorsHaemophilus influenzaeEnterococcus faeciumMicrobial Sensitivity TestsAnti-Bacterial AgentsDrug Resistance, Microbialbeta-LactamasesDrug Resistance, BacterialEscherichia coliConjugation, GeneticDNA, BacterialPenicillinasePlasmidsPenicillinsChloramphenicol ResistancePenicillin-Binding ProteinsExtrachromosomal InheritanceDrug Resistance, Multiple, BacterialTetracyclineDrug ResistanceShigella sonneiHaemophilus ducreyiTransformation, BacterialHaemophilus InfectionsTransformation, GeneticTrimethoprimEnterobacteriaceaeDNA Transposable ElementsBacterial ProteinsPenicillin GMuramoylpentapeptide CarboxypeptidaseSulbactamGram-Positive Bacterial InfectionsPeptidyl TransferasesStreptomycinHexosyltransferasesSerine-Type D-Ala-D-Ala CarboxypeptidaseMutationChromosomes, BacterialDrug Resistance, MultipleDrug Resistance, NeoplasmFecesMolecular Sequence DataGenes, BacterialBase SequencePivampicillinDisease ResistanceDNA Restriction EnzymesRecombination, GeneticDNA, CircularCulture MediaPlant DiseasesPolymerase Chain ReactionGenesVascular ResistanceCloning, MolecularNucleic Acid HybridizationDrug Resistance, ViralChloramphenicolDNA, RecombinantGentamicinsEnterococcus faecalisTetracycline ResistanceBacteriabeta-Lactam Resistancebeta-LactamsAnti-Infective AgentsCephalosporinsSulfamethoxazoleGenetic VectorsImmunity, InnateBacterial InfectionsShigellaPenicillanic AcidDysentery, BacillarySequence Analysis, DNASalmonellaVirulenceCloxacillinHost-Pathogen InteractionsAmoxicillinDrug Resistance, FungalSalmonella InfectionsEscherichia coli InfectionsStaphylococcus aureusErythromycinCiprofloxacinCephalexinCarbenicillinGram-Negative BacteriaKlebsiellaPhenotypeKanamycinTrimethoprim-Sulfamethoxazole CombinationAirway ResistanceGram-Negative Bacterial InfectionsAmino Acid Sequence