ECHO 9 infection in pregnant women with suspected rubella.

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Abstract
Both rubella virus and Echovirus 9 (ECHO 9) were epidemic in Scotland during the summer of 1973; both viruses can cause a mild febrile illness with rash. Sera from 286 rubella-negative pregnant women were tested for neutralizing antibodies to ECHO 9 virus; 40 women had antibody titres suggestive of recent infection. Prospective studies on the outcome of these pregnancies are in progress but preliminary results suggest no connexion between fetal damage and ECHO 9 infection.