lot longer. By the age of two most children has had the infection. There are new developments in the diagnosis, treatment, and prevention of RSV infection in infants and children. Early childhood recognition can help to minimize the morbidity and mortality.#
             RSV is a single-strand virus that belongs to the paramyxovirus family, genus Pneumovirus. The name for the virus is derived from the type of disease it produces (respiratory infection) and its appearance under the microscope in cell cultures. RSV can cause a wide variety of respiratory disorders ranging from a mild cold to serious and sometimes fatal disease of the lung in the very young and very old. It regularly produces an outbreak of infection each year during the months of January, February, and March and virtually disappears in the summer months.#The typical abnormalities of the lower respiratory tract in RSV bronchiolitis are necrosis of the respiratory epithelium of the small airways, peribronchiolar mononuclear infiltration, plugging of the lumens, and hyperinflation and atelectasis. Respiratory synctial virus-specific IgE elevated levels of histamine and leulotriene C4 (the same chemical
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