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Volume 17, Number 10—October 2011

Research

Plasmodium knowlesi Malaria in Humans and Macaques, Thailand

Somchai JongwutiwesComments to Author , Pattakorn Buppan, Rattiporn Kosuvin, Sunee Seethamchai, Urassaya Pattanawong, Jeeraphat Sirichaisinthop, and Chaturong Putaporntip

Author affiliations: Chulalongkorn University, Bangkok, Thailand (S. Jongwutiwes, P. Buppan, R. Kosuvin, U. Pattanawong, C. Putaporntip); Naresuan University, Phitsanulok, Thailand (S. Seethamchai); Vector Borne Disease Training Center, Saraburi, Thailand (J. Sirichaisinthop)

Main Article

Table 3

Temporal variation in distribution of Plasmodium species by malaria-endemic region of Thailand, 2006–2009*

Species % Distribution
Northwestern (Tak)
Eastern (Chantaburi)
Southern (Yala)
Southern (Narathiwat)
2006–2007, n = 681 2008–2009, n = 1,216 2006–2007, n = 261 2008–2009, n = 401 2006–2007, n = 286 2008–2009, n = 1,408 2006–2007, n = 370 2008–2009, n = 421
P. falciparum 44.54 50.55 8.42 16.74 57.14 60.50 23.31 56.82
P. vivax 52.63 48.68 91.03 81.50 41.86 38.97 76.17 41.34
P. malariae 1.16 0.21 0 0.22 0 0.13 0 0.41
P. ovale 1.41 0.21 0.27 0 0 0.07 0 0.20
P. knowlesi 0.26 0.35 0.27 1.54 1.00 0.33 0.52 1.22

*Data from nested PCR. Temporal variation in distribution in 1996 (n = 210) was 39.26 for Plasmodium falciparum, 57.41 for P. vivax, 2.96 for P. malariae, 0 for P. ovale, and 0.37 for P. knowlesi.

Main Article

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