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
All are true about cytomegalovirus except: 
Select and explain. 
A. May be transmitted from pregnant mother to foetus, B. Type 5 Human herpes virus, C. Lymphocyte enlargement, D. Cause congenital diseases
C: Lymphocyte enlargement
Answer: C: Lymphocyte enlargement 
Explanation: Ans: c. Lymphocyte enlargement Cytomegalovirus (Human Herpes Virus Type 5)It is cytomegalic (not lymphoproliferative, which occur in HHV4, 6 & 7)Characterized by enlargement of infected cellsCongenital infection- Intrauterine infection leads to fetal death or cytomegalic inclusion disease of newborn which is often fatalThe hallmark of such infection is the appearance of atypical lymphocytes in the peripheral blood; these cells are predominantly activated CD8+ T lymphocytes.