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Table 1 Chikungunya virus (ECSA strain) neutralizing antibody prevalence among the population of Pong Haeng and Nong Thum villages (Khon Khen Province, Thailand) tested in 2010 and pre-exposed to the Chikungunya outbreak of 1991

From: Long-term persistence of Chikungunya virus neutralizing antibodies in human populations of North Eastern Thailand

Age

PRNT50 titer

Positive/Tested (%)

10 - 103

>103

 

19 – 34

1

1

2/14 (14.3)

35 – 50

2

9

11/37 (29.7)*

>50

8

23

31/60 (51.7)#

Total (%)

11 (9.9)

33 (29.7)

44/111 (39.6)

  1. Chi square test by age classes: *19/34 to 35/50, chi-square: 6.42, p = 0.011; #19/34 to >50, chi-square = 1.27, no significant.
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Virology Journal

ISSN: 1743-422X