NRK cells transformed by the McDonough strain of feline sarcoma virus (SM-FeSV) were mutagenized by the use of 5'-azacytidine. Four cell lines expressing different transformation-defective phenotypes were isolated. Superinfection of these cell lines with simian sarcoma-associated virus (SSAV) led in
Cells preinfected with fowl plague virus followed by treatment with actinomycin D are a suitable system for studying early protein synthesis in cells infected with Semliki forest virus. One and one-half hours after superinfection, three new nonstructural proteins (NVP) were detected: NVP 145, NVP,
OBJECTIVE
Although the incidence in France of V. cholerae non-O1/non-O139 infection in man has increased since 1996, it remains low (7 cases in 1999). After the death in 1994 of an immunodepressed patient presenting a skin lesion showing superinfection by a strain of non-O1/non-O139 V. cholerae
Since the 1940's, non-Ig inhibitors of influenza A virus (IAV) hemagglutination activity and infectivity have been recognized in mammalian sera. Recently, the heat labile (beta) inhibitor of this type was identified by indirect methods as the lectin, conglutinin. In support of this hypothesis, we
Enterococci are commensal organisms well suited to survival in intestinal and vaginal tracts and the oral cavity. However, as for most bacteria described as causing human disease, enterococci also possess properties that can be ascribed roles in pathogenesis. The natural ability of enterococci to
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