https://www.gutenberg.org/ebooks/22090
The Task of Social Hygiene by Havelock Ellis | Project Gutenberg
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the tasksocial hygienehavelock ellisprojectgutenberg
https://www.sciencedaily.com/releases/2016/03/160309124800.htm
More social insects have weaker immune response, highlights role of hygiene | ScienceDaily
Research finds that among eusocial insects -- like ants, bees and termites -- the more individuals there are in a typical species colony, the weaker the...
more socialimmune response