Once seeding had been done, the Petri dishes were placed into anaerobic jars. Then a microaerophilic atmosphere was generated with CampyPak packs BBL  Becton, Dickinson and Co.. The cultures were incubated at a 37 degrees Celsius temperature for 4  15 days 19-20.
Una vez realizada la siembra, las cajas de Petri se introdujeron en campanas de anaerobiosis y se generó una atmósfera de microaerofilia con sobres CampyPak BBL- Beckton-Dikinson y los cultivos se incubaron a 37 grados centígrados durante 4-15 días 19, 20.