If researchers are responsible for the ethical conduct of their research, are they solely responsible for the burden of protecting participants from every conceivable harm?
Answer
yes
Among the principles that govern a research are autonomy, informed consent, beneficience and non-maleficience which specifically notes that the researcher should avoid any harm to the subjects as much as possible
Explanation
It is the duty of the researcher to ensure that there is minimal or no negative effect or harm to the subjects, and in case any occurs, the researcher must be responsible for the same and ensure that the state at which the subject was before the research, is approximately the same as at the end of the same. Again, the principle of beneficience and non-maleficience specifically requires that the researcher should avoid any harm to the subjects as much as possible