Influenza medical advice poster,Washington DC,USA,1918. The text of this poster explains how respiratory infections such as influenza are spread (through droplets in the air),and gives some preventative advice (such as avoiding crowds) and what to do if taken ill. The 1918 Spanish flu pandemic infected one fifth of the world population and killed between 20 and 50 million | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Library of Congress |
Bildgröße: | 3748 px × 4724 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |