Step 1: Understanding the Concept:
Avian chlamydiosis is a zoonotic bacterial disease affecting a wide range of bird species and humans.
Detailed Explanation:
Let us evaluate both statements:
- Statement (I) analysis: Parrot fever is caused by the obligate intracellular bacterium Chlamydia psittaci (formerly known as Chlamydophila psittaci). Thus, Statement (I) is true.
- Statement (II) analysis: Because the disease was historically identified and associated with psittacine birds (such as parrots, parakeets, and macaws), it is synonymously referred to as Psittacosis (or parrot fever). Thus, Statement (II) is true.
Step 2: Final Answer:
Since both Statement (I) and Statement (II) are true, the correct choice is Option (A).