Political action committee. In the United States, a political action committee (PAC) is a type of organization that pools campaign contributions from members and donates those funds to campaign for or against candidates, ballot initiatives, or legislation. The legal term PAC has been created in pursuit of campaign finance reform in the United States. This term is quite specific to all activities of campaign finance in the United States. Democracies of other countries use different terms for the units of campaign spending or spending on political competition (see political finance).
S pneumoniae is the most common cause of community-acquired pneumonia (CAP), bacterial meningitis, bacteremia, and otitis media, as well as an important cause of sinusitis, septic arthritis, osteomyelitis, peritonitis, and endocarditis and an infrequent cause of other less common diseases.See the image below. pneumoniae is the most common cause of community-acquired pneumonia (CAP), bacterial meningitis, bacteremia, and otitis media, as well as an important cause of sinusitis, septic arthritis, osteomyelitis, peritonitis, and endocarditis and an infrequent cause of other less common diseases. See the image below.
1 Many types of bacteria may cause pneumonia. 2  Pneumonia caused by Mycoplasma pneumoniaeMycoplasma pneumoniae is sometimes mild and called  walking pneumonia 3  .. Viruses, such as influenza A (the flu virus) and respiratory syncytial virus (RSV) can cause pneumonia.