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.
Adj. 1. atypical-not representative of a group, class, or type; a group that is atypical of the target audience; a class of atypical mosses; atypical behavior is not the accepted type of response that we expect from children.untypical. uncharacteristic-distinctive and not typical; a book uncharacteristic of its author.typical-not representative of a group, class, or type; a group that is atypical of the target audience; a class of atypical mosses; atypical behavior is not the accepted type of response that we expect from children. untypical.