Abstract
The present study aimed to explore the antimicrobial susceptibility of Gram positive and Gram negative bacteria at a governmental hospital in Al Qassim, Saudi Arabia. The study included collecting the results of susceptibility test of different bacterial isolates to antibiotics from the microbiology department. Most of the isolates were for Gram negative bacteria (61.57%). The susceptibility of Enterococcus faecalis, Enterococcus faecium, Staphylococcus epidermidis, Staphylococcus haemolyticus, Staphylococcus hominis, Proteus mirabilis, and Salmonella to numerous antibiotics was less than 50%. All of these bacteria were multidrug-resistant bacteria. On the other hand, the antimicrobial susceptibility of Acinetobacter baumannii complex was less than 50% to all but two antibiotics. The present study showed a high rate of bacterial non-susceptibility to different antibiotics and showed that there were several infections caused by multidrug resistant Gram positive and Gram negative bacteria in Qassim and numerous infections caused by extensively drug-resistant Acinetobacter baumannii bacteria.