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 pneumonias are bacterial lung infections that do not respond to commonly prescribed antibiotics. Examples include: 1  Mycoplasma pneumoniae âa common cause of upper respiratory infections, with an estimated 2 million cases in the U.S. each year; responsible for 15-20% of cases of community-acquired pneumonia.