In "The Novel Habits of Happiness" by Alexander McCall Smith, the theme of microbial resistance to antibiotics is explored, highlighting the growing challenge that humanity faces. The book delves into the implications of this resistance, emphasizing the urgent need for awareness and action to combat this global health threat. The characters in the story reflect on how their lives are affected by these modern medical dilemmas, showcasing the interplay between personal experiences and larger societal issues.

Through vivid storytelling, McCall Smith illustrates how the rise of antibiotic resistance not only impacts medical treatment but also influences philosophical and ethical considerations in everyday life. The narrative encourages readers to consider the broader consequences of our choices and the interconnectedness of health, happiness, and responsibility in a world increasingly threatened by microbial challenges.