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A Prospective Study of Human Polyomavirus Infection in Pregnancy

D. V. Coleman, M. R. Wolfendale, R. A. Daniel, N. K. Dhanjal, S. D. Gardner, P. E. Gibson and A. M. Field
The Journal of Infectious Diseases
Vol. 142, No. 1 (Jul., 1980), pp. 1-8
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/30112843
Page Count: 8
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A Prospective Study of Human Polyomavirus Infection in Pregnancy
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Abstract

Urine samples from 1,235 pregnant women were examined by light microscopy for cytologic evidence of virus infection. Smears of urine sediment from 40 women (3.2%) were observed to contain inclusion-bearing cells; polyomavirus infection was confirmed by virologic methods in 24 (60%). A polyomavirus was isolated from 12 women. Five isolates were identified as JC virus and one as BK virus. Another isolate designated AS virus appeared to be unique. Serologic studies on the 40 women were consistent with a high frequency of reactivation of JC virus, and virus excretion was related to gestation. The evidence suggests that selective excretion of JC virus may occur in pregnancy. Among 390 pregnant women without inclusion-bearing cells in their urine, 78 (20%) had a high or rising titer of serum antibody to JC or BK virus or both, a result suggesting virus reactivation, but virus excretion was not detected. In contrast to other reports, no evidence was found for transmission of BK virus to the fetus.

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