Common respiratory virus that dwindled during the pandemic is on the rise, CDC warns, with higher risk for certain groups

A seasonal respiratory virus known as parvovirus B19, also called fifth disease, is on the rise, according to the US Centers for Disease Control and Prevention (CDC). Parvovirus B19 spreads through respiratory droplets, and people in occupations with close contact with children are at a higher risk of infection. The pandemic and efforts to prevent the spread of Covid-19 led to a decline in parvovirus B19 infections and immunity. However, the CDC has recently received reports of higher test positivity rates and clusters of complications among high-risk individuals. Pregnant individuals and those with sickle cell disease are experiencing increased complications. The virus has two phases of illness, with symptoms such as fever, muscle aches, rash, and joint pain. Severe complications can occur in individuals with certain conditions. There is no vaccine for parvovirus B19, and treatment focuses on managing symptoms. The CDC advises following general precautions for preventing respiratory illness and seeking medical care if symptoms develop, especially for high-risk individuals.