DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
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Influenza vaccination. Nasal spray into a boy's nose of the 2014/2015 seasonal influenza (flu) vaccine. This is a live attenuated vaccine (Fluenz Tetra). Influenza vaccines contain influenza viruses. When injected under the skin or sprayed into the nose, these stimulate the body's immune system to produce antibodies that protect against future infection by live viruses. Vaccination is recommended for the elderly, the very young, and anyone suffering from respiratory or circulatory disease. It is provided annually because of the need to protect against new strains.
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