Chlamydia pneumoniae

Photo Source: CPN Help

Chlamydia pneumoniae (now called Chlamydophila pneumoniae) is one of three Chlamydia species that can cause pneumonia in humans. They are Gram-negative cocci bacteria present throughout nature. Untreated, these infections can become chronic.

Symptoms

Chlamydia pneumoniae in the respiratory tract causes atypical pneumonia, a persistent cough, headache, and a general ill feeling. The bug may also cause infections such as bronchitis, laryngitis, pharyngitis, rhinitis, and sinusitis. Many people who have it experience no symptoms or only mild symptoms, which explains the “walking pneumonia” name. If fever is present, it usually occurs early in the infection. Unlike most other pneumonia-causing pathogens, C. pneumoniae can cause a fairly severe sinusitis.

Transmission
Person-to-person transmission by respiratory secretions.
Read more about transmission here: http://www.ncbi.nlm.nih.gov/pubmed/8335994

Diagnosis

Most commonly, a blood test is done to measure IgM (acute) and IgG (chronic) titers for C. pneumoniae. But results  may not be reliable if the infection is new since the IgM antibody response can take up to 6 weeks to appear in the body and the igG response up to 8 weeks. Chest X-rays, the standard method to diagnosing regular pneumonia, usually show little or nothing for C. pneumoniae.

A promising laboratory diagnostic technique is polymerase chain reaction (PCR) cell culture of throat swab or sputum. However, most doctors’ offices, hospitals, and laboratories don’t offer this test yet.

Although this is not linked to other tick borne illnessese I am including it in this blog because I have noticed a lot of people infected with Lyme also have this.

 

Interesting Articles

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CPN Handbook

 

Sources:
Chlamydial Pneumonia on Wiki

Chlamydia pneumoniae not caught like you thought

Medscape 

Healthy Children 

Chlamydia pneumoniae and atherosclerosis

 





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