This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2018, Subject name: Pathology
[{'content': 'Which of the following hematological problems may be precipitated by parvovirus? \nSelect and explain. \nA. Haemolytic crisis, B. aplastic crisis, C. Pancytopenia, D. Thrombocytopenia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Parvo virus responsible for causing premature destruction of precursor cells in bone marrow Premature destruction of precursor cells - aplastic crisis If an individual develops parvovirus infection the number of cells which are being destroyed are relatively less In a situation in which say for example hemolytic anemia, the number of precursor cell percentage is very high, in this situation if a person develops parvovirus infection, leads to Sudden fall in hematocrit Eg: patient with sickle cell anemia or hereditary spherocytosis, if these patients develop parvovirus infection there will be a sudden fall in the hematocrit', 'role': 'assistant'}]