Yeast:A group of single-celledfungithat reproduce by budding.
大多数yeastare harmless (some are usedinbaking and brewing). Yeast is commonly present on normal humanskinand in areas of moisture, such as themouthandvagina, usually without causing any problems.
However, yeast can producediseasein people. For example, the yeastCandida(once calledMonilia) causes thrush (oralinfection) and diaper rash in infants,fingernailinfections, vaginal area infections in women after puberty, and ahostof problems in patients withimmunedeficiency.
