[Cell cultures in inframicrobiology and microbiology].
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Biomedical subjects
Publications and source records attributed to I Aderca.
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The electron microscopic study of a mouse kidney cell line (R1) infected with a murine cytomegalovirus strain isolated from a micromammal captured in the area of endemic Balkan nephropathy demonstrated the presence of multiple types of virus particles, in different phases of replication. Nucleocapsids with a partially or almost totally empty centre were predominant. The small number of particles with an electron-dense core and double envelope points to a low yield of mature infectant particles.
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A number of 1800 serum samples from apparently healthy subjects were tested by immunodiffusion (ID) and counterimmunoelectrophoresis (CIE) with a view to confirming the presence of HBsAg; results were uncertain in 21% of the cases. The enzyme immunoassay (ELISA kits) used to elucidate these uncertain reactions showed half of them to be negative. About 3% of the remaining sera, HBsAg-positive by ELISA, were positive by ID, but constantly negative by repeated CIE tests. Some possible explanations are suggested and the implications of such pitfalls in the interpretation of sero-epidemiological analyses are discussed.