Question: Who developed a useful staining method to identify bacteria?
Disambiguated questions and answers: question: How could the person be described who developed a staining method that could be used to identify bacteria?
Which Danish bacteriologist developed a useful staining method to identify bacteria?|What is the name of the person who developed a staining method to identify bacteria?|Which Danish bacteriologist developed a useful staining method to identify bacteria in two large groups?
Who developed a useful staining method to identify acid-fast organisms?
answer: Danish bacteriologist
Hans Christian Joachim Gram
Hans Christian Gram
Paul Ehrlich
Natural Questions answer: Hans Christian Gram (from the Wikipedia article "Gram stain")