"causative agent" is a correct expression in written English.
It usually refers to a person or thing that is responsible for causing something. For example, "The causative agent of the disease was identified as a virus."
Aspergillus niger is a causative agent causing IA.
Clostridium tetani, the causative agent of tetanus.
Shigella is a causative agent of bacillary dysentery in humans.
"The first news was shocking: the causative agent was indeed the Ebola virus".
The primary CR-BSI causative agent is biofilm formation.
The most commonly identified causative agent was Streptococcus pneumoniae.
Human sapovirus (SaV) is a causative agent of acute gastroenteritis.
Trypanosoma cruzi is the causative agent of Chagas disease.
Gnathostoma spinigerum is the causative agent of human gnathostomiasis.
Streptococcus mutans has been implicated as a primary causative agent of dental caries in humans1.
Staphylococcus aureus is a major causative agent for biofilm-associated infections.
