Table 1 Characteristics of collected serum samples

Number of sera tested

1054

657

1197

456

3364

Sex- female (%)

54,7

53,4

56,8

60,0

56,1

Avg. age (Years)

33

34,9

34,4

34

34

Age group:

 0–4 years (N)

113

48

90

40

291

 5–14 years (N)

187

107

210

79

583

 15–24 years (N)

171

114

204

77

566

 25–59 years (N)

375

250

455

169

1249

 60 + years (N)

208

138

238

91

675