What characteristic symptom does parvovirus infection typically cause?

Parvovirus infection, particularly the strain known as parvovirus B19, is often associated with a flulike syndrome, which includes symptoms like fever, malaise, and fatigue. These initial symptoms may mimic other viral infections, leading to confusion in diagnosis early on. In children, parvovirus B19 is commonly linked with "fifth disease," characterized by a "slapped cheek" rash that follows the flulike symptoms. While joint pain can occur, especially in adults, it is not the hallmark symptom and is more commonly recognized as a secondary effect rather than the primary presentation. The other options, such as severe cough and yellowing of the skin, are not associated with parvovirus infection, further illustrating why the flulike syndrome is the most characteristic symptom.