Antimicrobial Drug Resistance in Blood Culture Isolates at a Tertiary Hospital, Uganda.

We summarize antimicrobial drug resistance (AMR) patterns from blood cultures at a tertiary hospital in Uganda. High rates of resistance to first-line antibiotic drugs were observed among Staphylococcus aureus and gram-negative organisms. Microbiology services with susceptibility testing should be strengthened to support standardized reporting of AMR data in sub-Saharan Africa.

Epidemiology of Antimicrobial Resistance in pathogens Isolated in Mulago Hospital in 1998 and 2000

This study analysed the antimicrobial resistance distribution of Staphylococcus; Enterobacteria; Haemophillus and Pseudomonas isolated from the common service departments in Mulago Hospital; over periods of 1998 and 2000. The Standard Errors (se) of two proportions (resistance) and 95Confidence Interval (CI) for the difference between two proportions were used as statistical tests for determining whether there were changes being experienced over the study period. The analysed agents such as Methicillin; Etythromycine and Ceftazidime did not change in resistance point prevalence mechanisms that do not modify or attack them. While Augumentin; Sodium Cefuroxime; Chloramphenicol; Ciprofoxacin; Gentamicin; Tetracycline and Nitrofurantoin showed icnreased resistance prevalence (P0.05 possibly because of being overused or modified by many resistance mechanisms; high rates of resistance were seen in Enterobacteria (67); Staphylococcus (62) and haemophilus (50). Antipseudomonal agents did not show change in resistance prevalence (P0.05). Departmental/ward distribution of resistant isolates did not also change; except in Emergency and Outpatient departments since bacterial ecology tends to keep constant unless contronted by high level of infection control practice

Staphylococcus Aureus Antibiotypes at Mulago Hospital

We investigated the levels of Staphylococcus aureaus antibiotypes in Mualgo Hospital; toward effective control antibiotic drug resistance in the country. One hundred and elven (n=111) strains of Staph. aureus were tested to fourteen (n=14) antibiotics using stokes method. The obtained resistance profiles were analyzed by WHOBET5 computer software. forty-six (n=46) different antibiotypes were detected. These were further subdivided into three major categories:- 1. Methicilin Resistant - methicilin Suscpetible Staphylococcus aureus (MSSA); 2. Methicillin Resistant Staphylococcus aureus (MR-MSSA) and 3. Methicillin Resistant Staphylocossus aureus (MRSA). These categories were associated with 4; 28 and 14 antibiotypes respectively. One of the antibiotypes did not show any resistance to the tested drugs; while others expressed resistance mechanisms. We noted that MSSA; MR-MSSA and MRSA antibiotypes did not show any resistance to the tested drugs; while others expressed resistance to one or more (up to 11) antibiotics. This result reflects large number of resistance mechanisms. We noted that MSSA; MR-MSSA and MRSA antibiotypes expressed 0-1; 2-7 and 4-11 resistance mechanisms respectively. Of significance; the medical wards were source of 24of the MR-MSSA and MRSA strains. The predominating antibiotypes showed resistance to many common well established drugs (Trimethoprim; Tetracycline; Chloramphenicol; Erythromycin; Gentamicin and Methicillin) as well newer drugs Sodium Cefuroxime and Ciprofloxacin. The increased number of Staph. aureus resistant antibiotypes reflected uncontrolled antibiotic usage. This problem call for increased vigilance and proper use of bacterial antibiotics. In this connection; the last - line drugs methicillin; Telcoplanin and Vocomycin should be properly administered in order to prolong and maintain their use