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Volume 3, Number 2—June 1997


Rhodococcus equi and Arcanobacterium haemolyticum: Two "Coryneform" Bacteria Increasingly Recognized as Agents of Human Infection

Regina LinderComments to Author 
Author affiliation: Hunter College, New York, New York, USA

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Table 2

Representative pharyngitis screenings for Arcanobacterium haemolyticum

Period of study (reference) Number of isolations Rash Coinfection Incidencea (%) Clinical features (population)
1978-80 (16) 16 0 13 (C. diphtheriae, S . pyogenes, E. coli, P. aeruginosa) NR Symptomatic throat swabs and pyoderma (Sri Lanka)
1981-85 (19) 81b 37 NR 2.0 Symptomatic throat swabs (Sweden)
1990-92 (17) 42 17 NR 0.36 Symptomatic throat swabs; 5 cases onospot
positive (Ottawa, Canada)
1991-92 (42) 19 5 11 (streptococci, groups A, B, G) 0.49 Symptomatic throat swabs,
3922c; (Finland)
1992-95 (43) 16 12 5 (streptococci, groups A, B, ß-hemolytic) 0.75 Symptomatic throat swabs,
2121c; (Czech Republic)

NR-not reported
a Incidence refers to the proportion of sore throat cases in each study cited yielding A. haemolyticum.
b1 of 550 asymptomatic specimens yielded A. haemolyticum.
cFigures refer to the total specimens screened.

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