Influenza vaccination using jet injector. US Air Force staff sergeant administers a flu vaccine using a jet injector at MacDill Air Force Base,Florida,USA. Flu is caused by influenza viruses,which are transmitted in airborne water droplets through coughs or sneezes. The vaccination contains inactivated influenza virus particles,which stimulate the immune system to produce antibodies without causing an infection. Due to the virus's ability to produce new strains,a new vaccine is needed every year. A jet injector is a needle-free injection system using a high-pressure jet of liquid | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / TSGT. DOUGLAS K. LINGEFELT, US AIR FORCE |
Bildgröße: | 3673 px × 2388 px |
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