question: What may spread directly from one person to another?
choices.text: blue to red multinucleated cells fish deoxyribonucleic acid birds VOCs and NOx ducks microorganisms
choices.label: A B C D E F G H
formatted_question: What may spread directly from one person to another? (A) blue to red (B) multinucleated cells (C) fish (D) deoxyribonucleic acid (E) birds (F) VOCs and NOx (G) ducks (H) microorganisms