👉 Mononiviridae are a group of viruses that primarily infect the human body, causing various diseases such as mononucleosis and cytomegalovirus, among others. These viruses typically contain two nucleoprotein (NP) proteins, which serve as the viral capsid and envelope respectively. The term is derived from mononucleus, a common symptom of mononiviridae infections, which are also known as "monocytosis," the abnormal cell growth seen