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.
Demonstration of pathogenic organisms in the patient specimen is the most definitive test in microbiology. 1  However, failure to demonstrate pathogens in a single specimen is NOT definitive and may only indicate that: 2  The pathogen was absent or scant in that particular specimen; The sample was taken at a stage of the disease when the pathogen was rare; Viability was lost between the times of collection and arrival in the laboratory; The pathogen cannot be detected by this method of testing.