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Recent reports have documented human parvovirus B19 infection in pregnancy, which may lead to spontaneous abortion, stillbirth or hydrops fetalis. Transplacental infection in a case of hydrops fetalis is demonstrated by light and electron microscopy observation of virus inclusions in all tissues examined. Parvovirus particles measuring approximately 20 nm(More)
Following eclosion, adult Calliphora stygia were individually housed (at 22 degrees C and 73% RH) in 125 ml plastic vials and provided with ad libitum access to either 0.125 or 0.2M sucrose as a food source and daily food consumption measured throughout their adult life. All blowflies were weighed daily and food consumed is determined by weighing individual(More)
The membrane pacemaker theory of ageing proposes that the polyunsaturated fatty acid (PUFA) composition of membrane lipids of a species is an important determinant of its maximum lifespan. We report three experiments using the blowfly Calliphora stygia, where this theory was tested by manipulation of dietary fat profile. Although the fat profile of the(More)
To determine the diagnostic use of different markers of acute parvovirus B19 infection, serum specimens obtained from 128 persons with erythema infectiosum were tested for specific immunoglobulin G (IgG), IgA, and IgM antibodies by capture enzyme immunoassay (EIA) using Chinese hamster ovary (CHO) cell-expressed B19 antigen, and tested for circulating B19(More)
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