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Volume 5, Number 6—December 1999

Research

Epidemiologic Studies of Cyclospora cayetanensis in Guatemala

Caryn Bern*†Comments to Author , Beatriz Hernandez†, Maria Beatriz Lopez†, Michael J. Arrowood*, Maricruz Alvarez de Mejia†, Ana Maria de Merida†, Allen W. Hightower*, Linda Venczel‡, Barbara L. Herwaldt*, and Robert E. Klein†
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †Universidad del Valle, Guatemala City, Guatemala; and ‡University of North Carolina, Chapel Hill, North Carolina, USA

Main Article

Table 2

Characteristics of illness reported by 62 persons with Cyclospora infection who participated in the case-control study, Guatemala, May 7- September 3, 1997

Age group of participants
Characteristic <5 years
(n = 32) >5 years
(n = 30) p
Days of illness 15 (3-76)a 10 (2-90)a 0.05b
Stools per day 5 (1-10)a 3 (1-20)a 0.04b
Stool consistency nsc
Liquid/watery 22 (69) 18 (60)
Semisolid 10 (31) 6 (20)
Solid 0 (0) 4 (13)
Blood in stool 7 (22) 1 (3) 0.05
Mucus in stool 29 (91) 11 (37) <0.001
Fever 24 (75) 9 (30) <0.001
Vomiting 16 (50) 8 (27) ns
Abdominal pain 10 (31) 13 (43) ns
Anorexia 8 (25) 7 (23) ns
Headache 2 (6) 7 (23) ns
Treated before
visiting health-care
facility with
Any antibiotic 22 (69) 15 (50) ns
Metronidazole 11 (34) 9 (30) ns
Cotrimoxazole 1 (3) 4 (13) ns
Mebendazole 7 (22) 2 (7) ns
or albendazole

aMedian (range).
bBy Wilcoxon 2-sample test
cns = not significant.

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