Resistance profile of Staphylococcus sp. isolates from tilapia fillet samples Oreochromis niloticus from the northwestern region of Paraná state, Brazil / Perfil de resistência de Staphylococcus sp. isolados de amostras de filete de tilápia Oreochromis niloticus da região noroeste do estado do Paraná, Brasil

Abstract

Staphylococcus sp. are responsible for several clinical problems in fish farming and humans. This microorganism has a high risk associated with its presence in large numbers, as they have the ability to produce, under certain conditions, thermostable enterotoxins, which, when ingested, cause poisoning and various foodborne diseases. Present in aquaculture environments, Staphylococcus sp, have great potential to acquire antibiotic resistance, due to the use of such substances in the indiscriminate treatment and prophylaxis of bacterial diseases. The presence of food resistant Staphylococcus sp is a current problem in food production and marketing and is a potential danger to human health and a risk to the world fish industry. One hundred tilapia fillet samples were used for isolation of Staphylococccus sp., obtained from fishes located in northwestern Paraná state. It was submitted to antimicrobial susceptibility testing with ten antibiotics. Regarding the 100 samples analyzed, all showed resistance: Tetracycline 18%, Penicillin 31%, Enrofloxacin 14%, Erythromycin 12%, Vancomycin 15%, Gentamicin 14%, Oxacillin 20%, Ampicillin 28% and Cephalothin 11%. The emergence of resistant microorganisms in food is worrying as it can cause serious infections, hospitalizations, and death.

Hygiene conditions of mussels Perna perna captured in Niterói, RJ, Brazil: thermal intervention and microbiological evaluation

“…Most strains were resistant to erythromycin (54.54%) strains), followed by clindamycin (31.81%). Rosa et al (2021) found lower values for tilapia fillets, with 12% of strains resistant to erythromycin and 20% to clindamycin. However, in the analysis of antimicrobial susceptibility of bacteria isolated from Jundiá, Costa et al (2008) found a higher resistance to erythromycin (27.27%).…”

“…The most efficient antimicrobial was gentamicin, with only 4.54% of resistance and 86.36% of susceptibility. Rosa et al (2021) found slightly higher values for gentamicin, with 14% of resistant strains.…”