West Bengal Health Services Director Biswaranjan Satpathy further said that the nurse on duty has also been suspended until further notice.
The head of the paediatric department was transferred along with a departmental colleague while three post-graduate trainees were suspended for a month for medical negligence.
Satpathy, meanwhile, declined to comment when asked if hospital authorities were mulling the payment of a financial compensation to the victims' families.
The infants, who were put inside the apparatus because their body temperature was low at birth, were found to have succumbed to the heat.
