Lysozyme in tears, stomach acid (pH 1.5–3.5), and defensins on epithelial surfaces.
S. aureus : Catalase(+), Coagulase(+). Causes skin infections, pneumonia, endocarditis, and toxic shock syndrome. medical microbiology lecture notes ppt updated
Growth rate equals death rate; nutrients deplete; toxic metabolites accumulate. Sporulation occurs here. Lysozyme in tears, stomach acid (pH 1
+-------------------------------------------------------------------+ | ANTIBIOTIC TARGETS | +-------------------------------------------------------------------+ | CELL WALL SYNTHESIS | Beta-lactams (Penicillins, Cephalosporins)| | | Glycopeptides (Vancomycin) | +-------------------------+-----------------------------------------+ | PROTEIN SYNTHESIS | 30S Subunit: Aminoglycosides, Tetracyclines| | | 50S Subunit: Macrolides, Clindamycin | +-------------------------+-----------------------------------------+ | NUCLEIC ACID SYNTHESIS | DNA Replication: Fluoroquinolones | | | RNA Transcription: Rifampin | +-------------------------+-----------------------------------------+ | METABOLIC PATHWAYS | Folic Acid Inhibition: Sulfonamides | +-------------------------+-----------------------------------------+ 3. Emergence of Resistance (Superbugs) Causes bacterial pneumonia
S. pneumoniae : Alpha-hemolytic, Optochin sensitive. Causes bacterial pneumonia, meningitis, and otitis media. 2. Gram-Negative Rods
This comprehensive set of updated lecture notes is designed for medical students, healthcare professionals, and educators. It aligns with the latest clinical guidelines and presentation-ready slides. Module 1: Core Principles of Medical Microbiology