Background and Aim
Filarial infections affect over 150 million people in the tropics. One of the major forms of filarial pathologies is lymphedema; a condition where the immune response is significantly altered, resulting in changes in the normal flora.
Staphylococcus hominis
, a human skin commensal, can also be pathogenic in immunocompromised individuals. Therefore, there is the possibility that
S. hominis
could assume a different behavior in filarial lymphedema patients. To this end, we investigated the levels of antibiotic resistance and extent of
mec
A gene carriage in
S. hominis
among individuals presenting with filarial lymphedema in rural Ghana.
Method
We recruited 160 individuals with stages I–VII lymphedema, in a cross‐sectional study in the Ahanta West District of the Western Region of Ghana. Swabs from lymphedematous limb ulcers, pus, and cutaneous surfaces were cultured using standard culture‐based techniques. The culture isolates were subjected to Matrix‐Assisted Laser Desorption/Ionization Time of Flight (MALDI‐TOF) mass spectrometry for bacterial identification. Antimicrobial susceptibility testing (AST) was performed using the Kirby–Bauer method.
mec
A genes were targeted by polymerase chain reaction for strains that were cefoxitin resistant.
Results
In all, 112
S
.
hominis
were isolated. The AST results showed resistance to chloramphenicol (87.5%), tetracycline (83.3%), penicillin (79.2%), and trimethoprim/sulphamethoxazole (45.8%). Of the 112 strains of
S. hominis
, 51 (45.5%) were resistant to cefoxitin, and 37 (72.5%) of the cefoxitin‐resistant
S. hominis
haboured the
mec
A gene.
Conclusion
This study indicates a heightened level of methicillin‐resistant
S. hominis
isolated among filarial lymphedema patients. As a result, opportunistic infections of
S. hominis
among the already burdened filarial lymphedema patients in rural Ghana may have reduced treatment success with antibiotics.