pathogens can cause disease
pathogen is infectious_agent. bacteria is one_cause_of_illness. virus_can_cause_disease is pathogen. genetically_engineered_viral_pathogen is genetically_engineered_pathogen. pathogen is microorganism. infection is disease. pathogen is disease_producing_microorganism. genetically_engineered_bacterial_pathogen is genetically_engineered_pathogen. bacteria_can_cause_disease is pathogen. pathogen is disease_producing_agent.