[Three cases of psittacosis]

Area of Science:

• Infectious Diseases
• Pulmonology
• Microbiology

Background:

• Atypical pneumonia presents diagnostic challenges, often requiring identification of specific causative agents.
• Fever and respiratory symptoms are common indicators of infectious lung conditions.

Observation:

• Three patients presented with pyrexia (fever), cough, and chest X-ray findings consistent with atypical pneumonia.
• Clinical presentation included headache, muscle pain, and pharyngeal discomfort in some cases.
• Antibody titers for Chlamydia psittaci (parrot fever) significantly increased in all patients upon admission and post-admission.

Findings:

• All three cases were diagnosed with Chlamydia psittaci infection, commonly known as psittacosis or parrot fever.
• Chest X-rays confirmed the presence of atypical pneumonia in all affected individuals.
• Elevated Chlamydia antibodies confirmed the etiological link between the infection and the observed pneumonia.

Implications:

• Early diagnosis and treatment of psittacosis are crucial for effective patient outcomes.
• Minocycline demonstrated efficacy in treating Chlamydia psittaci-induced atypical pneumonia.
• This case series highlights the importance of considering psittacosis in the differential diagnosis of atypical pneumonia.