Study show that “relational exchange,” where healthy people fill in for sick ones temporarily inherit their social contacts, can actually spread the epidemic to more people—just before an epidemic peaks, the team calculates, leading to an exponential increase in the number of new cases

See the source article by following the link below:
Study show that “relational exchange,” where healthy people fill in for sick ones temporarily inherit their social contacts, can actually spread the epidemic to more people—just before an epidemic peaks, the team calculates, leading to an exponential increase in the number of new cases