Acta Microbiologica 46. (1999)

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ACTA MICROBIOLOGICA ET IMMUNOLOGICA HUNGARICA A QUARTERLY OF THE HUNGARIAN ACADEMY OF SCIENCES Acta Microbiologica et bnmunologica Hungarica publishes reviews and original papers on microbiology and immunology in English Acta Microbiologica et bnmunologica Hungarica is published in yearly volumes of four issues by AKADÉMIAI KIADÓ H-l 117 Budapest Prielle K. u. 4 Manuscripts and editorial correspondence should be addressed to Acta Microbiologica et bnmunologica Hungarica Institute of Microbiology, Semmelweis University Medical School H-l445 Budapest P.O. Box 370 Fax: 36 (1) 210 2959 E-mail: Subscription information Orders should be addressed to AKADÉMIAI KIADÓ H-1519 Budapest, P.O. Box 245 Subscription price for Volume 46 (1999) in 4 issues US$ 164, including normal postage, airmail delivery US$ 20.00. Acta Microbiologica et Immunologica Hungarica is abstracted/indexed in Abstracts of World Medicine, Biological Abstracts, Chemical Abstracts, Chemie-Information, Current Contents-Life Sciences, Excerpta Medica database (EMBASE), Index Medicus “This periodical is included in the document delivery program THE GENUINE ARTICLE of the Institute of Scientific Information, Philadelphia. The articles published in the periodical are available through The Genuine Article at the Institute for Scientific Information, 3501 Market Street, Philadelphia PA 19104.” ©Akadémiai Kiadó, Budapest 1999