humans animals genetics metabolism microbiology female chemistry immunology isolation & purification male drug effects pharmacology physiology therapeutic use drug therapy pathology ireland adult immunology, inflammation & infection epidemiology classification cattle diagnosis middle aged staphylococcus aureus mice growth & development blood escherichia coli molecular sequence data pathogenicity prevention & control administration & dosage bacteria aged sensitivity and specificity anti-bacterial agents polymerase chain reaction biosynthesis veterinary virology food microbiology therapy dna, bacterial etiology bacterial proteins complications biology phylogeny time factors listeria monocytogenes immune response amino acid sequence enzymology adverse effects this review Sequence Analysis, DNA virulence immune system Colony Count, Microbial microbial sensitivity tests infection adolescent cell line reproducibility of results signal transduction inflammation base sequence medicine and health sciences gene expression cell line, tumor cystic fibrosis aged, 80 and over epithelial cells risk factors