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Description:Photomicrograph of Haemophilus influenzae as seen using a Gram-stain technique.
During the flu outbreak of 1918 H. influenzae was termed Pfeiffer's Bacillus, where it was found in the sputum of many influenza patients, and thought to be the cause of influenza.
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Content Providers(s):CDC
Creation Date:1979
Photo Credit:
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.