What type of infection is characterized by the presence of yeast?

The presence of yeast is a defining characteristic of fungal infections. Yeasts are a type of fungus, and they can cause various infections in humans, typically when the immune system is weakened or when there is an imbalance in the normal microbial flora of the body. Common examples include Candida infections, which can affect mucosal surfaces, the skin, and, in more severe cases, can enter the bloodstream. Unlike bacterial, viral, or parasitic infections, which involve other microorganisms and mechanisms, fungal infections are specifically associated with the growth and pathogenicity of fungi, including yeasts. Thus, the correct identification of these infections as fungal emphasizes the unique nature of the organism involved in the infection process.