Can you determine if someone is infected just by looking at them?

Determining if someone is infected solely by observing their appearance is not reliable. Many infections can be asymptomatic, meaning that an individual can be carrying an infection without showing any visible signs or symptoms. This highlights the complexity of infections, as some individuals may appear healthy while still being infectious or harboring pathogens. Additionally, even when symptoms are present, they may not be definitive indicators of a specific infection, as various diseases can present similar signs. Therefore, diagnostic testing and a thorough evaluation of clinical symptoms are essential for accurately identifying infections. Hence, it is clear that visual assessment alone cannot confirm an infection.