Chlamydia pneumoniae/Mycoplasma pneumoniae

Molecular detection of Chlamydia/Chlamydophila pneumoniae
Microbiology
Bacteriology
○ Nasopharyngeal (NP) swab ○ BAL ○ Bronchial washings/brush specimens ○ Lung aspirates ○ Tissue/biopsy (e.g. open lung, transbronchial lung) ○ Sputum ○ Pleural fluid ○ Tracheal aspirate

Other Information

○ The PCR assay for Chlamydia/Chlamydophila pneumoniae will also detect Mycoplasma pneumoniae

○ NP swab: single swab in universal transport medium
○ Respiratory specimens: Sterile container (with small amount of normal saline for tissues)


Nasopharyngeal swab
○ Insert tip of swab into nostril aiming along the floor of nasal cavity until posterior wall of nasopharynx is reached. Resistance will be felt when reached. Rotate swab for 10-30s. Place swab into transport medium and close tube. Repeat collection with second nostril.

BAL
○ Pass bronchoscope transnasally or transorally (if patient is not intubated) or via endotracheal tube (if patient is intubated). Instill a large volume of 0.85% sterile saline (nonbacteriostatic) into the airway lumen. Discard the initial fluid recovered (likely contaminated). Collect remaining fluid in a clean, sterile container via suction.

Bronchial washing/brush specimens
○ Pass bronchoscope transnasally or transorally (if patient is not intubated) or via endotracheal tube (if patient is intubated). For washings, inject aliquots of approximately 20 to 30 mL of 0.85% sterile saline (nonbacteriostatic) for adults or 5 mL for children. Suction washings into a sterile container.
○ For brushings, instill brush to collect cellular material from bronchial epithelial wall. Place protected brush sample in sterile container with 1 mL of saline.

Lung aspirates
○ Samples should be collected aseptically through decontaminated skin using a syringe and needle and placed in a sterile container and submitted to the laboratory ASAP.

Pleural fluid
○ Decontaminate skin. Insert needle into pleural space, aspirate fluid into syringe OR collect pleural fluid directly from drain if chest tube has been inserted to drain pleural space. Transfer specimen (min volume 1 mL) into sterile, leakproof container

Tissue (Respiratory tract)
○ Collect 5-10 mm3 tissue aseptically using surgical technique/punch biopsy. Place in a clean, sterile container with a small amount of sterile saline.

Sputum/tracheal aspirate
○ Collect sputum by expectoration, induction or by tracheal aspiration in sterile container.
○ For endotracheal aspirates, collect aspirated material using a NEW sterile catheter or in-line catheter and aspirate material from the trachea using a syringe or suction device


Refer to section Sample Processing / Delivery

PHOL

○ 5 days

416-586-4800 extension 4468

NO

○ Label specimen container. Place specimens in biohazard bag and seal.

○ Transport specimens to the UHN/SH Microbiology Laboratory at refrigeration temperature (2-8˚C) ASAP after collection

○ UHN/SH Microbiology Laboratory will refer specimen to Public Health
Ontario Laboratory for testing