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Volume 14, Number 10—October 2008


Cryptosporidium Species and Subtypes and Clinical Manifestations in Children, Peru

Vitaliano A. Cama, Caryn Bern, Jacqueline Roberts, Lilia Cabrera, Charles R. Sterling, Ynes Ortega, Robert H. Gilman, and Lihua XiaoComments to Author 
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (V.A. Cama, C. Bern, J. Roberts, L. Xiao); Asociacion Benefica Proyectos en Informática, Salud, Medicina y Agricultura, Lima, Peru (L. Cabrera); University of Arizona, Tucson, Arizona, USA (C.R. Sterling); University of Georgia, Griffin, Georgia, USA (Y. Ortega); The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA (R.H. Gilman);

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Table 3

Age at first infection by Cryptosporidium spp. and subtype family in 533 children, Peru

Species or subtype family No. episodes Age, y, mean (range) p value
C. hominis 61* 1.93 (0.19–9.51) 0.026†
Subtype family Ia 15 2.13 (0.67–8.05) 0.113
Subtype family Ib 16 1.38 (0.60–2.82) 0.176
Subtype family Id 7 1.41 (0.19–3.34) 0.645
Subtype family Ie 15 1.81 (0.25–9.51) 0.723
C. parvum 15 1.22 (0.44–2.49) 0.034†
C. meleagridis 9 1.43 (0.78–2.75) 0.615
C. canis or C. felis 6 2.26 (0.68–3.74) 0.039†
Mixed infections 2 1.62 (1.44–1.79) Not done

*Eight C. hominis infections did not have subtype family data.
†Not significant after Bonferroni adjusted α = 0.05/5 = 0.01.
‡Includes 1 mixed infection with C. meleagridis and C. canis.

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