Isolation of pathogens and biochemical analysis
Plates transferred to the laboratory were incubated at 25°C for 48 h for growing the colonies. Single colonies from
plates with pure culture growth were re-streaked on the blood agar media to obtain pure isolates.
In each of the grown colonies catalase, oxidase and gram staining tests were done and Gram-negative, catalase
positive and oxidase negative bacilli were cultured in Waltman –Shatts medium, after 48h incubation at 25°C
pure growth colonies used for PCR test. In each step of PCR testing, distilled water as negative control is used.
DNA extracting
For isolation, pure colonies were put in tubes beside 100 microliter distilled water. DNA was extracted according to
kit of extracting DNA