A metropolitan area network (MAN) is a hybrid between a LAN and a WAN. Storage area networks (SANs) provide a high-speed infrastructure to move data between storage devices and file servers. Advantage. 1  Performance is fast.  Availability is high because of the redundancy features available.
Walking pneumonia is generally treated with antibiotics. Mild infections are often not treated because they tend to clear on their own. With treatment, most people begin to feel better within a few days.
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.