Study of extended-spectrum beta-lactamases and AmpC beta-lactamases producing <i>Klebsiella</i> from clinical samples in tertiary care hospital of Punjab

<i>Klebsiella</i> species are significant nosocomial and opportunistic pathogens characterized by high multidrug resistance, often through the production of extended-spectrum and AmpC beta-lactamases. Surveillance, confirmatory testing, and infection control guide antibiotic use and prevent spread.