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Table 1 Antibody prevalence to rift valley fever phlebovirus or Crimean-Congo hemorrhagic fever orthonairovirus among pygmies in the East region of Cameroon

From: Serological evidence of rift valley fever Phlebovirus and Crimean-Congo hemorrhagic fever orthonairovirus infections among pygmies in the east region of Cameroon

Age range (years)

Sex ratio (M/F)

Average age ± SD

Number of positive samples for the specified population/no. tested (%)a

Total

  

Abong Mbang

Lomié

Messok

Mindourou

 

Rift Valley Fever Phlebovirus (RVFV)

≤20

0.3

17.3 ± 3.7

0

0/1

0/3

0/8

0/12

21–40

2.0

32.9 ± 5.4

0/2

0/13

0/4

7/32 (21.9)

7/51 (13.7)

41–60

1.5

50.5 ± 5.5

0/4

2/12 (16.7)

0/2

5/31 (16.1)

7/49 (14.3)

61–80

1.5

69.2 ± 5.4

0/2

0/4

1/2 (50.0)

2/17 (11.8)

3/25 (12.0)

Total

1.4

44.4 ± 16.4

0/8

2/30 (6.7)

1/11 (9.1)

14/88 (15.9)

17/137 (12.4)

Crimean-Congo Hemorrhagic Fever Orthonairovirus (CCHFV)

≤20

0.3

17.3 ± 3.7

0

0/1

0/3

0/8

0/12

21–40

2.0

32.9 ± 5.4

1/2 (50.0)

0/13

0/4

0/32 b

1/51 (2.0)

41–60

1.5

50.5 ± 5.5

1/4 (25.0)

1/12 (8.3)

0/2

3/31 (9.7)

5/49 (10.2)

61–80

1.5

69.2 ± 5.4

0/2

0/4

0/2

0/17b

0/25

Total

1.4

44.4 ± 16.4

2/8 (25.0)

1/30 (3.3)

0/11

3/88 (3.4)

6/137 (4.4)

  1. RVFV rift valley fever phlebovirus, CCHFV Crimean-Congo hemorrhagic fever orthonairovirus
  2. aThere was no significant difference between the rates of RVFV Ig G in the four studied districts (P > 0.05) while the rate of CCHFV Ig G was relatively higher in Abong Mbang compared to other studied districts (P = 0.004)
  3. bCCHFV assay showed indeterminate result for a 35 years old woman and a 65 years old man originating from the district of Mindourou