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
Hemagglutination done by all virus except 
Select and explain. 
A. Influenza, B. Rubella, C. Measles, D. HPV
D: HPV
Answer: D: HPV 
Explanation: Ans. is 'd' i.e., HPV When hemagglutinating viruses grow in cell cultures, their presence can be indicated by the addition of guinea pig erythrocyte to culture. If the viruses are multiplying in the culture, the erythrocytes will adsorb on to the surface of cells. This is known as Hemadsorption. Viruses causing Hemagglutination are : Influenza Virus Measles Rubella Coxsackie Virus RhinoVirus Rabies Parainfluenza Virus TogaVirus EnteroVirus EchoVirus ReoVirus