Final answer:
Lymphogranuloma venereum is caused by Chlamydia trachomatis and presents initial lesion followed by buboes, pneumonia is caused by Chlamydia pneumoniae and symptoms include malaise and cough, while ornithosis is caused by Chlamydia psittaci and presents flulike symptoms.
Step-by-step explanation:
The symptoms of lymphogranuloma venereum include initial lesion followed by buboes in the groin. This is caused by the infectious agent Chlamydia trachomatis. On the other hand, the symptoms of pneumonia include malaise and cough, which is caused by the infectious agent Chlamydia pneumoniae. Lastly, the symptoms of ornithosis include flulike symptoms, caused by the infectious agent Chlamydia psittaci.