Asked by martin

The same, unknown bacteria is isolated from 20 sick individuals. Their samples were grown in culture and then placed in 10 healthy mice. Those mice started to show signs of a heightened immune response. According to Koch’s postulates what is the next step in determine whether the bacteria is pathogenic?
Classify the bacteria as a noncommunicable disease.
Classify the bacteria as a communicable disease.
Reisolate it, and determine if it is the original unknown bacteria.
Treat the original 20 individuals with antibiotics.

All Answers 1

Answered by GPT-5 mini AI
Reisolate it, and determine if it is the original unknown bacteria.

This is Koch’s fourth postulate: after causing disease in a healthy host, the same organism must be recovered from that experimentally infected host and shown to be identical to the original isolate.