Bacteria Patterns on Tonsillar Surface and Tonsillar Core Tissue among Patients Scheduled for Tonsillectomy at Bugando Medical Centre
Abstract Background: Tonsillitis is an inflammation of tonsils due to either viruses or bacteria. Here we report the bacteria patterns on tonsillar surface and tonsillar core tissue among patients scheduled for tonsillectomy at Bugando Medical Centre (BMC), Mwanza Tanzania.Methods: The study included 120 patients planned for tonsillectomy between April and July 2019. Swab samples from tonsilar surface pre-tonsillectomy and core post-tonsillectomy were collected. Culture was performed following the microbiology laboratory standard operating procedures. Data analysis was done using STATA version 13 as per study objectives.Results: The slightly majority of participants were males 73 (60.83%) with median age of 6 [IQR 4-11] years. The proportion of culture positive growth was high on surface than in core swab samples 65(54.2%) vs 42(35.0%), p=0.003. The commonest bacterial pathogen detected from the surface and core were S. aureus 29(40.3%) and 22(51.2%), followed by S. pyogenes, 17(23.6%) and 11(25.6%), respectively. Features suggestive of tonsillitis on histology were reported in 83 (73.5%) of samples. Conclusion: More than two-third of patients undergoing tonsillectomy had positive culture of possible bacterial pathogens. Streptococcus pyogenes and Staphylococcus aureus were the predominant bacteria detected. More studies to investigate the treatment outcome of these patients are highly recommended.