August 21, 2007. A new rule from the Department of Homeland Security (DHS) is set to take effect that establishes procedures for employers to follow when they receive âno-matchâ letters from the Social Security Administration (SSA).
Atypical organisms such as Mycoplasma pneumoniae, Chlamydia pneumoniae, and Legionella pneumophila are implicated in up to 40 percent of cases of community-acquired pneumonia. Antibiotic treatment is empiric and includes coverage for both typical and atypical organisms.
Atypical pneumonia refers to pneumonia caused by certain bacteria, including Legionella pneumophila, Mycoplasma pneumoniae, and Chlamydophila pneumoniae. It is called âatypicalâ because the symptoms differ from those of pneumonia due to other common bacteria. Pneumonia is an infection of the lung.ack to Top Symptoms. Pneumonia due to mycoplasma and chlamydophila bacteria is usually mild. 1  Pneumonia due to Legionella pneumophila gets worse during the first 4 - 6 days, and then improves over 4 - 5 days.