ssion S a researcher and medical doctor you make several observations about the appear atients that you see Bacteria are always associated with ulcers Ulcers are cured by antibiotics Cured only when bacteria are eradicated otherwise chronic ich of the following would be the correct application of Koch s postulates 3 pts 1 Certain bacteria are always associated with an ulcer and these are not found in individuals without ulcers 2 These bacteria have been isolated from patients with an ulcer and grown in pure culture 3 When these bacteria are introduced to a new host an ulcer occurs 4 The same bacteria are recovered from the individual with the ulcer 1 Certain bacteria are sometimes associated with an ulcer and these are usually not found in ndividuals without ulcers 2 These bacteria have been isolated from patients with an ulcer and grown in pure culture 3 When these bacteria are introduced to a new host an ulcer occurs in most ndividuals 4 The same bacteria are recovered from the individual with the ulcer Certain bacteria have been isolated from patients with an ulcer and grown in pure culture 2 hese bacteria are sometimes associated with an ulcer and these are usually not found in dividuals without ulcers 3 When these bacteria are introduced to a new host an ulcer occurs 4 he same bacteria are recovered from the individual with the ulcer