This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Most common clinical feature of toxoplasmosis in an immunocompetant adult? 
Select and explain. 
A. Encephalitis, B. Lymphladenopathy, C. Chorioretinitis, D. Glaucoma
B: Lymphladenopathy
Answer: B: Lymphladenopathy 
Explanation: Ans. is 'b' i.e., Lymphadenopathy Clinical manifestation of toxoplasmosis 1.Adults a) lmmunocompetant host Asymptomic in 90% of patients. M.C. clinical featur is cervical lymphadenopathy. Other less common manifestations are pneumonia, myocarditis, encephalitis. b) Immunocompromised host M.C. signs and symptoms are principally within CNS --> Encephalopathy, Men ingoencephalitis. 2. Children a) Congenital May present with hydrocephalus, microcephaly mental retardation, deafness, blindness, epilepsy. Intracerebral calcification may occur. b) Acquired Mostly asymptomatic C/Fs are chorioretinitis (most common), cataract, glaucoma.