👉 Monoinfection refers to a situation where an individual is simultaneously infected by two distinct pathogens, such as viruses or bacteria. This dual infection can lead to complex interactions between the pathogens and the host's immune system, potentially resulting in more severe disease outcomes compared to single infections. For example, co-infections like HIV and tuberculosis can exacerbate each other's effects, complicating treatment and prognosis. Understanding monoinfection is crucial for developing effective therapeutic strategies and public health interventions.