Ants avoiding each other during sickness might be due to genetic similarity making them more susceptible to disease and the familial bond they share with not only common genes, but the same mother as queen. They also have a common purpose to share resources in order to maintain the ant hill whereas humans are motivated with differing purposes. Many of our goals are conflicted and incentivized ones over competing for resources, money, and power, which makes us more prone in competition to act adversely against each other.
[This is in response to New Scientist’s article. Join our beta to discuss more ideas with us and earn via your commentary.]