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 pox virus infection in human is ? 
Select and explain. 
A. Smallpox, B. Monkeypox, C. Cowpox, D. Mulluscum contagiosum
D: Mulluscum contagiosum
Answer: D: Mulluscum contagiosum 
Explanation: Ans. is 'd' i.e., Mulluscum contagiosum Among the given options, smallpox (variola) virus and molluscum contagiosum affect human as their primary host. Small pox has been eradicated. Molluscum contagiosum is a common skin infection.