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 community-acquired pneumonia pathogens. Atypical bacterial pneumonias can be differentiated into those caused by zoonotic or nonzoonotic atypical pathogens. Zoonotic atypical CAP pathogens include Chlamydophila (Chlamydia) psittaci (psittacosis), F tularensis (tularemia), and C burnetii (Q fever).