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Table 2 Absolute and relative frequency distribution (percentage) of positive and negative cases of beta-hemolytic streptococci infections by age (by year)

From: Molecular and sequencing study and identification of novel SeM-type in beta-hemolytic streptococci involving the upper respiratory tract in Iran

Group

Positive

Negative

P-value

Absolute f.

Relative f.

Absolute f.

Relative f.

<2

27

87.09

4

12.91

0.026

2–6

30

73.17

11

26.83

6–10

19

82.16

4

17.40

>10

14

53.80

12

46.20

Total

90

74.40

31

25.60

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BMC Veterinary Research

ISSN: 1746-6148

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