Parvovirus B19 is a contagious, single-stranded DNA virus responsible for causing a variety of human infections, most notably erythema infectiosum (fifth disease) in children and transient aplastic crisis or hydrops fetalis in people with compromised immune systems or unborn fetuses.
Hyperbaric oxygen therapy may potentially alleviate anemia in Parvovirus B19 patients by increasing oxygen delivery to tissues, promoting healing, and stimulating the immune system.