<prompt> Which virus cannot be cultivated -VacciniaVariolaMolluscum contagiosumCowpox  <response>: The molluscum bodies are composed of a large number of virus paicles embedded in a protein matrix. Humans are the only susceptible host. The virus cannot grow in eggs, tissue cultures or animals. REF:ANANTHANARAYAN AND PANIKERS TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:465 