JOURNAL OF CLINICAL MICROBIOLOGY ... Patrick R. Murray, Editor (1994) .... a
publication of the American Society for Microbiology, 1325 Massachusetts ...
JOURNAL OF CLINICAL MICROBIOLOGY VOLUME 29 OCTOBER 1991 * NUMBER 10
Richard C. Tilton, Editor in Chief (1994) North American Laboratory Group, Ltd. New Britain, Conn. Richard F. D'Amato, Editor (1992) The Catholic Medical Center of Brooklyn and Queens, Inc. Jamaica, N.Y. Steven D. Douglas, Editor (1993)
Children's Hospital of Philadelphia Philadelphia, Pa.
Marilyn A. Menegus, Editor (1994) University of Rochester Medical Center Rochester, N. Y. Patrick R. Murray, Editor (1994) Washington University School of
Medicine St. Louis, Mo.
Ira F. Salkin, Editor (1995) New York State Department of
Health Albany, N.Y. Joseph L. Staneck, Editor (1994) University Hospital Cincinnati, Ohio Fred C. Tenover, Editor (1994) Centers for Disease Control Atlanta, Ga.
EDITORIAL BOARD Donald G. Ahearn (1993) Libero Ajello (1992) William L. Albritton (1993) Daniel Amsterdam (1992) Michael Ascher (1992) Lawrence Ash (1992) Rhoda Ashley (1991)
Alan G. Barbour (1992)
Ellen Jo Baron (1991) Arthur L. Barry (1993) Barry J. Beaty (1993)
M. J. Blaser (1993) Barbara Body (1992) Victor D. Bokkenhauser (1991) Carol A. Bolin (1993) Alexander Borczyk (1992) Patrick J. Brennan (1993) Don J. Brenner (1992) Kenneth Bromberg (1991) George F. Brooks (1993) Arnold Brown (1993) Kay Buchanan (1993)
Joseph M. Campos (1992)
Leland E. Carmichael (1991) Walter S. Ceglowski (1993) Dennis J. Cleri (1993) Wallace A. Clyde, Jr. (1991) Mitchell L. Cohen (1991) Richard W. Cone (1992) Alan L. Coykendall (1992)
Marie B. Coyle (1993) Jack T. Crawford (1993) George Cukor (1993)
Dennis Dixon (1991) Sam T. Donta (1992) Stephen C. Edberg (1991) Paul H. Edelstein (1991) Mario R. Escobar (1992)
J. J. Farmer III (1992) Paul M. Feorino (1993) Mary Jane Ferraro (1993) Patricia Ferrieri (1992) Marianne Forsgren (1993) Lynn S. Garcia (1992) Michael A. Gerber (1993) Mary J. Gilchrist (1993) Monica Grandien (1993) Larry D. Gray (1993) Harry Greenberg (1993) Peter A. Gross (1992) Joseph J. Guarneri (1993) Ian D. Gust (1991) Margaret R. Hammerschlag
(1993)
Maurice W. Harmon (1991) William J. Hausler (1992) George R. Healy (1992) Nancy K. Henry (1991) John E. Herrmann (1992) Kenneth L. Herrmann (1991) Dwight C. Hirsh (1992) Rick Hodinka (1992) Barry Holmes (1991) Russell C. Johnson (1991) Ronald N. Jones (1993) James H. Jorgensen (1991) Naynesh Kamani (1993) Raymond L. Kaplan (1993) Neil E. -Kay (1991) George E. Kenny (1991) Timothy Kiehn (1991) Mogens Kilian (1991) Wesley E. Kloos (1991) Peter J. Krause (1993) Geoffrey A. Land (1993) Paul Lehmann (1992)
Phylis A. Leist (1993) Walter J. Loesche (1991) James D. MacLowry (1992) Louis Magnarelli (1992) Leonard W. Mayer (1993) Kenneth McClatchy (1992) Joseph E. McDade (1991) Patrick L. McDonough (1993) Geoffrey A. McKinley (1991) John C. McKitrick (1993) James C. McLaughlin (1993) Patricia Mickelsen (1992) Lilian V. H. Moore (1991) Josephine A. Morello (1993) Stephen A. Morse (1992) Steve L. Moseley (1991) Maurice A. Mufson (1992) Brian R. Murphy (1991) Irving Nachamkin (1991)
Cynthia Needham (1993) Marguerite A. Neill (1993) Paul A. Offit (1992) Andrew B. Onderdonk (1992) Joseph V. Osterman (1991) Timothy L. Overman (1991) Andrew Pachner (1993) Demosthenes Pappagianis (1992) Charlotte D. Parker (1992) A. William Pasculle (1992) John L. Penner (1993) David H. Persing (1992) Edward Pesanti (1991) Stephen R. Petteway, Jr. (1993) Marie T. Pezzlo (1992) Michael A. Pfaller (1993) M. John Pickett (1991) Lucy Rasmussen (1991)
Michael Rinaldi (1991)
Barbara Robinson (1992) Frank G. Rodgers (1993) Richard F. Ross (1992) Steve Rowell (1992) Lorry G. Rubin (1993) Kathryn L. Ruoff (1993) Eugene W. Rypka (1992) R. Bradley Sack (1993) Daniel F. Sahm (1993) Paul C. Schreckenberger (1993) Joseph D. Schwartzman (1991) Emmett B. Shotts, Jr. (1992) Salman Siddiqi (1992) Stephen Spector (1991) Charles W. Stratton (1993) Richard Summerbeil (1991) ERa M. Swierkosz (1993) Jason Tanzer (1991) Patricia E. Taylor (1991) Kenneth W. Theil (1991) Grace M. Thorne (1991)
Clyde Thornsberry (1992) Bent Faber Vestergaard (1993) Alexander von Graevenitz (1992) I. Kaye Wachsmuth (1993) Kenneth W. Walls (1992) Joseph L. Waner (1992) Lawrence G. Wayne (1992) Melvin P. Weinstein (1992) Robert W. Wilmott (1991) Alec E. Wittek (1992) Kwei-Hay Wong (1992) G. N. Woode (1991) Charles H. Zierdt (1991) Steven Zuckerman (1991)
Jack S. Remington (1992)
Barbara H. Iglewski, Chairman, Publications Board Pamela Wilks, Production Editor Linda M. Illig, Director, Journals The Journal of Clinical Microbiology (ISSN 0095-1137), a publication of the American Society for Microbiology, 1325 Massachusetts Ave., N.W., Washington, DC 20005-4171, is devoted to the dissemination of new knowledge concerning the applied microbiological aspects of human and animal infections and infestations, particularly regarding their etiologic agents, diagnosis, and epidemiology. Papers dealing with antibiotics and antimicrobial agents and chemotherapy, with fundamental aspects of infection and immunity, and with food or dairy microbiology fall within the scope of other ASM publications. Instructions to authors are published in the January issue each year; reprints are available from the editors and the Journals Division. The Journal is published monthly, one volume per year. The nonmember subscription prices are $250 (U.S. and Canada) and $280 (foreign; air drop shipping) per year; single copies are $40. The member subscription prices are $43 (U.S. and Canada) and $73 (foreign; air drop shipping) per year; single copies are $10. Correspondence relating to subscriptions, reprints, defective copies, availability of back issues, lost or late proofs, disposition of submitted manuscripts, and general editorial matters should be directed to the ASM Journals Division, 1325 Massachusetts Ave., N.W., Washington, DC 20005-4171 (phone: 202 737-3600). Claims for missing issues from residents of the United States, Canada, and Mexico must be submitted within 3 months after publication of the issues; residents of all other countries must submit claims within 6 months of publication of the issues. Claims for issues missing because of failure to report an address change or for issues "missing from files" will not be allowed. Second-class postage paid at Washington, DC 20005, and at additional mailing offices. POSTMASTER: Send address changes to Journal of Clinical Microbiology, ASM, 1325 Massachusetts Ave., N.W., Washington, DC 20005-4171. Made in the United States of America. Printed on acid-free paper. ( '14t. L 1 H* 4 9$Ik Copyright C) 1991, American Society for Microbiology. All Rights Reserved. The code at the top of the first page of an article in this journal indicates the copyright owner's consent that copies of the article may be made for personal use or for personal use of specific clients. This consent is given on the condition, however, that the copier pay the stated per-copy fee through the Copyright Clearance Center, Inc., 21 Congress St., Salem, MA 01970, for copying beyond that permitted by Sections 107 and 108 of the U.S. Copyright Law. This consent does not extend to other kinds of copying, such as copying for general distribution, for advertising or promotional purposes, for creating new collective works, or for resale.
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Author Index Acosta, Alvaro, 2305 Adams, T. H., 2158 Ahmed, Muzahed Uddin, 2273 Ali, Ayub, 2224 Allocati, Nerino, 2300 Almeida, Elza Carmem Cerqueira, 2285 Amann, Charles W., 2175 Ansari, Shamim A., 2115 Aso, Yoshio, 2130 Avila, Jose Luis, 2305
Baker, Carolyn, 2111 Barry, Arthur L., 2111 Batter, V., 2280 Bazin, C., 2291 Beards, G. M., 2213 Beauchesne, Danielle, 2296 Behets, Frieda, 2280 Bernard, Kathryn, 2263 Bhaduri, Saumya, 2341 Bingnan, Fu, 2224 Bishagara, K., 2280 Biswas, Biswajit, 2228 Blaser, Martin J., 2139 Bottger, Erik C., 2360 Boulanger, C., 2291 Braham, P., 2158 Brenner, Don J., 2144 Brown, C., 2280 Burnie, James P., 2099
Camps, W., 2120 Capron, A., 2291 Catamo, Giovanni, 2300 Cellini, Luigina, 2300 Champeau, Y., 2291 Chan, Cynthia S., 2266 Chaudhary, R. K., 2329 Cheng, Hwee-Ming, 2180 Citron, Diane M., 2197 Congi, R. V., 2093 Cooper, Christiane, 2263 Cubitt, W. D., 2213 Daneshvar, Maryam I., 2351 Darcy, F., 2291 Davidson, Arthur J., 2139 Davis, Thomas E., 2193 De Cock, M., 2348 Decoster, A., 2291 Del Portillo, Patricia, 2163 Demory, J. L., 2291 D'Hoop, M. H., 2348 Di Girolamo, Arturo, 2300 Dillner, Joakim, 2180 Disasi, A., 2280 Dorm, Gordon L., 2169 Dorsch, Mattias, 2144 Douglas, John M., Jr., 2139 Drowart, A., 2348 Dubreuil, J. Daniel, 2250 Duhamel, M., 2291 Dutta, Sukanta K., 2228 Dwyer, B., 2125
Ewan, E. Pauline, 2263 Ewing, L., 2158
Fairbrother, John M., 2250 Fegan, Mark, 2151 Foong, Yoke-Ting, 2180 Forghani, Bagher, 2266 Francis, Paul, 2151 Freydiere, Anne-Marie, 2357 Fuchs, Peter C., 2111 Fuerst, John A., 2151 Fuller, DeAnna D., 2193
Galama, J., 2120 Gallo, Dana, 2345 Gille, Yves, 2357 Goldstein, Ellie J. C., 2197 Golovina, Galina I., 2313 Gomes, Harrison Magdinier, 2285 Green, M., 2335 Greenwood, J. R., 2322 Gruenewald, Ruben, 2354 Guangli, Tu, 2224 Guillot, Carla, 2245 Gupta, Amar, 2338 Hanson, Carl V., 2345 Harel, Josde, 2250 Hartley, Trudie M., 2253 Harvey, S. M., 2322 Hayward, A. C., 2151 Henderson, Ruth W., 2354 Heneine, Walid, 2253 Hennessy, J. N., 2093 Higgins, Joanne, 2187 Hillier, S. L., 2204 Hofhienz, David, 2253 Hollis, Dannie G., 2351 Honda, Takeshi, 2326 Huang, Z. H., 2125 Hurst, Jerry W., 2266 Huygen, K., 2348
Igarashi, Akira, 2107 Ihara, Seiji, 2234 lida, Takako, 2130 Islam, A. I. M. M., 2273 Jackson, Julia, 2245 Johnson, Steven R., 2333
Lesniewski, Richard R., 2175 Leverenz, Gail J., 2175 Lindberg, L.-A., 2331 Lohman, Barbara L., 2187 Lortie, Louis-Andrd, 2250 Lukehart, S. A., 2204 Lund, Arve, 2259
Mackenzie, Charles D., 2338 MacLean, Catherine, 2329 Malek, A., 2224 Marques, Maria Angela de Melo, 2285 Marthas, Marta L., 2187 Marx, Preston A., 2187 Matthews, Ruth C., 2099 Mattingly-Napier, Bonnie L., 2228 Melchers, W., 2120 Meuwissen, J., 2120 Mills, S. D., 2093 Minamide, Wakio, 2240 Miwatani, Toshio, 2326 Moncla, B. J., 2158 Morita, Kouichi, 2107 Moss, C. Wayne, 2351 Motley, S. T., 2158 Mukherjee, Debasish, 2228 Mungmee, Vanida, 2209 Murakami, Kazuhisa, 2240 Murillo, Luis Angel, 2163 Murray, Patrick R., 2111
Rojas, Miguel, 2305 Rolston, Kenneth V., 2245 Ross, B. C., 2125 Rudolph, Donna L., 2253 Rumjanek, Franklin D., 2285 Ryder, R. W., 2280 Saad, Maria Helena Feres, 2285 Sahikh, Hamid A., 2273 Sahm, D. F., 2335 Sam, Choon-Kook, 2180 Sarafian, Samuel K., 2333 Sarno, Euzenir Nunes, 2285 Sattar, Syed A., 2115 Schlauder, George G., 2175 Schwebke, J. R., 2204 Shlaes, David M., 2335 Simon, J., 2291 Slizewicz, B., 2291 Soveri, T., 2331 Springthorpe, V. Susan, 2115 Stackebrandt, Erko, 2144 Steigerwalt, Arnold G., 2144 St.-Germain, Guy, 2296 Sukura, A., 2331
Nakamura, Etuo, 2240 Narita, Ikuyo, 2326 Nishibuchi, Mitsuaki, 2326 Noel, J. S., 2213 Nzila, N., 2280
Tachibana, Hiroshi, 2234 Taguchi, Fumiaki, 2130 Takeuchi, Tsutomu, 2234 Tanaka, Mariko, 2107 Taniguchi, Koki, 2273 Tarrand, Jeffrey J., 2245 Teraoka, Hiroshi, 2240 Tessier, Susan, 2263 Thomas, Myrtle L., 2333 Turner-Jones, Carolyn, 2341 Tzipori, Saul, 2224
O'Connor, Steven P., 2144 Olsvik, 0rjan, 2259 Ostovari, Margareta I., 2197
Unicomb, Leanne E., 2224 Urasawa, Shozo, 2273 Urasawa, Tomoko, 2273
Patarroyo, Manuel Elkin, 2163 Pedersen, Niels C., 2187 Penner, J. L., 2093 Penning, Larry M., 2345 Peralta, Jose Mauro, 2285 Perez-Perez, Guillermo I., 2139 Pessolani, Maria Cristina Vidal, 2285 Peterson, David A., 2175 Piccolomini, Raffaele, 2300 Pickett, M. J., 2322 Piot, P., 2280 Polish, Louis B., 2139 Prasad, Umapati, 2180 Present, William B., 2253 Punnarugsa, Vanna, 2209
Valcke, C., 2348 van de Ven, E., 2120 Van Onckelen, A., 2348 Van Vooren, J. P., 2348 Vercauteren, G., 2280 Vermeulen, N. M. J., 2158 Vincent, Sophie, 2335 Vittu, G., 2291
Kamenga, M., 2280 Kaneda, Yoshimasa, 2234 Kaplan, Jonathan E., 2253 Karlsson, Asa, 2197 Kashamuka, M., 2280 Khabbaz, Rima F., 2253 Kitamura, Tadaichi, 2130 Knapp, Joan S., 2333 Knight, Royce G., 2335 Kobayashi, Nobumichi, 2273 Kobayashi, Seiki, 2234 Kohler, Richard B., 2220 Kron, Michael A., 2338
Quinn, T., 2280
Lachica, R. Victor, 2341 Laga, M., 2280 Lajeunesse, Joel D., 2245 Lal, Renu B., 2253 Leland, Diane S., 2220
Rahim, Zeaur, 2224 Rahman, Maksudar, 2115 Ravagnan, Giampietro, 2300 Rivard, Sylvie, 2115 Roberts, M. C., 2204
Wada, Koji, 2240 Wakasugi, Fumiyo, 2273 Washington, John A., II, 2111 Wasteson, Yngvild, 2259 Watanabe, Sachihiko, 2240 Watanabe, Yasushi, 2234 Wenglar, Mark, 2245 Yappow, Shelia, 2354 Yernault, J. C., 2348 Yogo, Yoshiaki, 2130 Yoh, Myonsun, 2326 Yurlova, Tatyana I., 2313
Zolotaryov, Fyodor N., 2313
