TORCH stands for
These are collectively called TORCH infections and tests to detect them as TORCH test.
All of these are maternal infections that affect fetus in pregnant women. They either spread to the fetus through placenta or directly affect the baby at the time of birth during normal vaginal delivery.
Most of these are silent, relatively without symptoms and do not have any dramatic presentation in adults. But they result in abortions, congenital anomalies, blindness, deafness, mental retardation and stillbirths. This makes the diagnosis very important both for treatment or the decision to abort. Only the detection is not enough but it is also important to know whether the fetus is affected or not?
TORCH TESTS ARE GENERALLY ASKED FOR
While asking for TORCH tests the doctor will ask for IgM & IgG and both give valuable information.
Significance of IgM
IgM is the first antibody produced as the result of bodys immune response, which lasts for a very short time (1-3 weeks). Presence of IgM indicates acute/recent/ongoing infection.
Significance of IgG
In an immune response, IgM is followed by IgG. It remains in the serum for a longer period of time and its presence indicates chronic infection. In case of Rubella and Toxoplasma, presence of IgG confers lasting immunity to the patient for the respective infection.
These infections are suspected if the patients presents with one or more of the following clinical features