Definition of TORCH screen

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TORCH screen: A blood test that is designed to screen for a group of infectious agents known by the acronym TORCH, which stands for Toxoplasma gondii, other viruses (HIV, measles, and so on), rubella (German measles), cytomegalovirus, and herpes simplex. All these infectious agents are teratogens (agents that are capable of causing birth defects). The TORCH infectious agents are among the leading causes of neonatal morbidity and 'mortality.