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jan 1, 1936 - Mouse Mammary Tumour Virus John Bittnerreported an infectious agent that later became known as mouse mammary tumour virus. Sources - Date accessed: https://resources.rndsystems.com/images/site/rnd-systems-viral-poster.png - 30/09/2018

Added to timeline:

1 Oct 2018
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459

Date:

jan 1, 1936
Now
~ 89 years ago

Images: