**3.2 Indirect methods**

All of these tests evidence specific antibodies. There are screening tests: indirect hemagglutination (HAI), direct agglutination (DA), immunoassays, and confirmatory tests: Sabin Feldman, ISAGA M, A and E, IFI IgG and IFI IgM, and avidity test.

*All of them have their advantages and disadvantages (see* **Tables 1** and **2***)* [1, 3, 8, 11]. *The choice depends on the kind of laboratory and resources available.*
