The immunoreacting cells were observed in the tissue sample.

The immunoreactivity of the cells was measured using a fluorescence microscope.

The immunoreaction occurs when the immune system responds to an antigen.

The immunoreactive antibodies are used to detect specific proteins in the blood.

The immunoreactive substance triggered an immune response in the body.

Immunoreactions play a crucial role in the body's defense against pathogens.

The immunoreactivities of the patients were measured and compared.

The immunoreacted cells showed a strong immune response.

The immunoreactives were detected in the patient's blood sample.

The immunoreactants were measured in the blood samples.