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PubMed1989

Erythema infectiosum in a primary school: investigation of an outbreak in Bury.

Between January and April 1987, 97 of 302 (32%) children attending a primary school in Bury, Lancashire, were affected by an exanthematous illness. The duration and extent of the episode caused considerable local interest and anxiety. Examination of 6 serum specimens obtained during the subsequent investigation demonstrated evidence of recent Human Parvovirus B19 infection in 3 children and 1 teacher. No evidence of recent rubella virus infection was found. The investigation of the episode is discussed in the context of problems which may occur in the management of similar outbreaks.

Child↗
PubMed1990

[Parvovirus B19 infections. The cause of fifth disease-erythema infectiosum--can also cause aplastic crises, fetal damage and polyarthritis].

Human parvovirus B19 can be an important etiological factor in aplastic crises in patients with chronic hemolytic anemia, in fetal damage, and in acute polyarthritis. B19-virus can only be grown in cell cultures established from human bone marrow, where the virus production occurs in erythroblasts. Parvovirus can cause severe, often fatal, infections in various kinds of animals, also in their fetuses, and many cases of teratogenic changes have been described. The B19-infection is diagnosed by demonstration of either IgM antibodies or B19-DNA in serum samples obtained in the early phases of infection. Patients with EI are infectious before skin eruptions occur, i.e. in the prodromal phase where virus can be detected in respiratory secretion. Transmission of the infection by concentrated, heat-treated factor preparations has been reported. Acute polyarthritis accompanying B19-infections has most often been described to affect the finger, hand and knee joints in adult women. Maternal B19-infections can be complicated by intrauterine infections damaging the fetus and resulting in abortion, hydrops fetalis or stillbirth. The B19-infection has not with certainty been found to be teratogenic. Recent studies seem to show that about 10-20% of primary maternal infections can be complicated by fetal damage, but until further this percentage should be regarded with great reservation.

Adolescent↗