alb5469859

Bacteriology research. Researchers in Japan in the 1910s injecting bacillus bacteria into rats. Laboratory rats are used in medical research because they are easy to breed and examine. This photograph, dating from between around 1915 and 1920, is from the Bain News Service, one of the USA's earliest news picture libraries.

Bacteriology research. Researchers in Japan in the 1910s injecting bacillus bacteria into rats. Laboratory rats are used in medical research because they are easy to breed and examine. This photograph, dating from between around 1915 and 1920, is from the Bain News Service, one of the USA's earliest news picture libraries.
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Caption:
Bacteriology research. Researchers in Japan in the 1910s injecting bacillus bacteria into rats. Laboratory rats are used in medical research because they are easy to breed and examine. This photograph, dating from between around 1915 and 1920, is from the Bain News Service, one of the USA's earliest news picture libraries.
Credit:
Album / Pictures From History/Universal Images Group
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Image size:
5000 x 3804 px | 54.4 MB
Print size:
42.3 x 32.2 cm | 16.7 x 12.7 in (300 dpi)