[] ⒉免疫功能缺陷病人的獲得性弓形蟲病先天性和獲得性免疫功能缺陷患者感染弓形蟲的危險性極大，特別是潛在性感染的復發(fā)。在這種情況下獲得性弓形蟲病的淋巴結(jié)病變可不明顯，可能出現(xiàn)廣泛播散和迅速發(fā)生的致命性感染，表現(xiàn)為高熱、肺炎、皮疹、肝脾腫大、心肌炎、肌炎、丸炎。甚至引起腦弓形蟲病。典型的腦弓形蟲病以亞急性方式起病、有頭痛、偏癱、癲癇發(fā)作、視力障礙、神志不清，甚至昏迷，發(fā)熱與腦膜刺激征較少見。腦脊液檢查可見少數(shù)紅細胞，單核細胞輕度增多，蛋白稍增高，糖可*正常，偶有降低。CT檢查顯示腦炎改變，也可呈現(xiàn)單個或多個對比度增強的占位性病灶，直徑小于cm，多發(fā)生于基底神經(jīng)節(jié)。強化后呈環(huán)形或結(jié)節(jié)狀增強。[] 除上述提到的幾種病以外：.如果懷孕頭個月發(fā)生先天性感染，大約%胎兒可能有嚴重的損害，出現(xiàn)流產(chǎn)、死胎或新生兒疾病，或者出生后有眼、腦或肝臟的病變或畸形，如視網(wǎng)膜脈絡膜炎、白內(nèi)障、腦內(nèi)鈣化、腦積水、小頭畸形、智力障礙、黃疸和肝脾腫大。懷孕末個月發(fā)生的感染，嚴重者不到%。[] [] .相對其他來說，免疫能力低的孕婦和兒童，將zui可能受到這種寄生蟲影響。
2. Acquired toxoplasmosis in immunocompromised patients Patients with congenital and acquired immunodeficiency have a high risk of infection with Toxoplasma gondii, especially the recurrence of underlying infections. In this case, the acquired lymph node lesions of toxoplasmosis may not be obvious, and there may be widespread dissemination and rapid fatal infections, manifested as high fever, pneumonia, rash, hepatosplenomegaly, myocarditis, myositis, and pill inflammation. It even causes cerebral toxoplasmosis. Typical toxoplasmosis occurs in subacute form, with headache, hemiplegia, seizures, visual disturbances, confusion, and even coma. Fever and meningeal irritation are less common. Cerebrospinal fluid examination showed a few red blood cells, a slight increase in monocytes, a slight increase in protein, sugar can be compley normal, occasionally reduced. CT examination revealed changes in encephalitis, and may also present with single or multiple contrast-enhancing lesions occupying less than 1 cm in diameter and occurring mostly in the basal ganglia. After strengthening, it has a circular or nodular enhancement. [] In addition to the above-mentioned several diseases: If fetal congenital infection occurs in the first month of pregnancy, approximay % of fetuses may have severe damage, have miscarriage, stillbirth or neonatal disease, or have eyes, brain or liver after birth Lesions or malformations such as retinal choroiditis, cataracts, intracerebral calcification, hydrocephalus, microcephaly, mental retardation, jaundice, and hepatosplenomegaly. Less than 90% of serious infections occur during the last months of pregnancy. [] [] . Relatively low-immunity pregnant women and children are most likely to be affected by this parasite.

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