**1.2 Toxo IgM test result**

After the IgM test result is ready, two new situations emerge the following:


## **1.3 How to confirm a seroconversion**

The way to confirm a SC will depend on capabilities and the laboratory scope. Now at this point there are two other new scenarios:


*The Important Role of Laboratories in the Diagnosis and Prevention of Toxoplasma Infection DOI: http://dx.doi.org/10.5772/intechopen.108313*

#### **Figure 1.**

*Pregnant women-testing. a. Negative. b. Past infection. c. Seroconversion. Note: Own elaboration.*

Once SC is confirmed, the doctor in charge must be notified as soon as possible, so these women can be medicated to avoid parasites infect placenta and make sure the newborn does not have any immediate or late clinical consequences [1–5, 7, 8].

#### **1.4 Newborns without her mother's serology**

Another different possible scenario could be to receive a child, without her mother's serology. In this stage, follow them up, doing an IgG toxo test every three months until they are one-year-old [1, 2]. What information is obtained?:

1.At the beginning, during the first six months, the same mother's serology is observed. The specific IgG crosses placenta so the results obtained will be a copy of their mother's antibody titer. But when the baby's immune system matures, mother's antibodies disappear. This is the moment to be more careful and make sure the parasite does not take advantage of it. This is the reason why the child's IgG antibodies, until she/he is one year old, must be followed (as shown in **Figure 2**) [1, 2].

#### **Figure 2.**

*Newborns without her mother´s serology. Note: Own elaboration.*

