TABLE 2

Life cycle stages of Toxoplasma gondii and type of infection in lung cancer patients (n=72) as identified by immunohistochemistry

Infection typeSubjects nRange of percentage score#Infection status
Cysts30.2–2.9%Inactive
Tachyzoites30.8–8.7%Active
Macrophages or other cells180.6–34.2%Active
Mixture481.1–44.0%Active
Total infections72

#: the score was determined as described in the materials and methods.