On the Relationship between Asymptomatic Infections and Diseases

Abstract

Many microbes responsible for infectious diseases are known to run an asymptomatic course in a significant portion of the population. By highlighting the conceptual complexities of host-microbe interactions, this paper elucidates the fact that while many infections remain asymptomatic, this does not necessarily mean that such infections are of no concern for health. The paper builds on the so-called damage-response framework and considers several developments required to gain a more comprehensive perspective on infections and their relationship to diseases. Irrespective of their (short-term) clinical manifestation, infections leave an imprint with consequences for health. Finally, these considerations regarding host-microbe interactions must be incorporated into policy decisions and public understanding of health if we hope to handle future pandemics such as Covid-19 better.