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Volume 25, Number 2—February 2019
Research Letter

Little Evidence of Zika Virus Infection in Wild Long-Tailed Macaques, Peninsular Malaysia

Chong Long Chua, Yoke Fun Chan, Eva S.G. Soh Andu, Jeffrine J. Rovie-Ryan, Frankie Thomas Sitam, Khebir Verasahib, and I-Ching SamComments to Author 
Author affiliations: University of Malaya, Kuala Lumpur, Malaysia (C.L. Chua, Y.F. Chan, E.S.G. Soh Andu, I-C. Sam); Department of Wildlife and National Parks Peninsular Malaysia, Kuala Lumpur (J.J. Rovie-Ryan, F.T. Sitam); National Public Health Laboratory, Sungai Buloh, Malaysia (K. Verasahib)

Main Article


Zika virus, DENV-1, and DENV-2 neutralization titers of serum samples collected from long-tailed macaques in Peninsular Malaysia, 2009, 2010, and 2016*

Sample collection period and size
No. samples†
Macaque sex and age group, ID no.
Town/city, state, coordinates
Neutralization titers
Zika virus PRNT50
Zika virus FRNT50
October–November 2009 and October 2010, n = 145
Male adult, ZMW604
Bukit Serendah, Selangor, 3.36°N, 101.60°E
March and August 2016, n = 89 5 Female juvenile, PMW804 Manong, Perak, 4.61°N, 100.90°E 40 20 <20 <20
Female adult, WDSP/16/009 Kuala Lipis, Pahang, 4.18°N, 102.05°E 80 80 <20 20
Male adult, WDSP/16/006 Kuala Lipis, Pahang, 4.18°N, 102.05°E 80 80 640 160
Male adult, WDSP/16/012 Kuala Lipis, Pahang, 4.18°N, 102.05°E 40 40 20 40
Male adult, WDSP/16/086 Batu Pahat, Johor, 1.85°N, 102.94°E 40 20 40 20

*DENV-1, dengue virus serotype 1; DENV-2, dengue virus serotype 2; FRNT50, 50% focus reduction neutralization test; ID, identification; PRNT50, 50% plaque reduction neutralization test.
†Number of samples from the first batch (n = 234) that were positive by Zika virus PRNT50 and further tested by FRNT50.

Main Article

Page created: January 18, 2019
Page updated: January 18, 2019
Page reviewed: January 18, 2019
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