Molecular Epidemiology and Phylogenetic Analysis of Peste des Petits Ruminants Virus Circulating in Sheep in Bangladesh
Table 1
Prevalence of RT-PCR-positive PPRV in relation to different factors.
Variables
Categories
No. of samples collected (%)
Positive, n(%)
95% CI (%)
value
Districts/locations
Mymensingh
50 (20)
14 (28a)
15.1–40.9
0.046
Dhaka
50 (20)
27 (54b)
39.7–68.3
Noakhali
50 (20)
16 (32a)
18.6–45.4
Khulna
50 (20)
17 (34a)
20.4–47.6
Gaibandha
50 (20)
15 (30a)
16.8–43.2
Ecological zones
Plane land
100 (40)
41 (41a)
31.2–50.8
0.325
Coastal
100 (40)
33 (33a)
23.6–42.4
Jamuna river basin
50 (20)
15 (30a)
16.8–43.2
Breed
Crossbreds
105 (42)
54 (51.4a)
41.7-61-2
<0.001
Native
145 (58)
35 (24.1b)
17.1–31.2
Sex
Male
100 (40)
44 (44a)
34.1–53.9
0.024
Female
150 (60)
45 (30b)
22.6–47.4
Age
0–6 months
40 (16)
14 (35a)
19.6–50.5
0.980
7–12 months
42 (16.8)
15 (35.7a)
20.6–50.8
13–24 months
100 (40)
37 (37a)
27.4–46.6
>24 months
68 (27.2)
23 (33.8a)
22.3–45.4
Sources
Animal market
85 (34)
33 (38.8a)
28.3–49.4
<0.001
Imported
25 (10)
19 (76b)
58.0–93.9
Born in farm/house
140 (56)
37 (26.4a)
19.0–33.8
Seasons
Winter (Nov–Feb)
92 (36.8)
42 (45.7a)
35.3–56.0
0.037
Rainy (Jul–Oct)
80 (32)
25 (31.3a,b)
20.9–41.6
Summer (Mar–Jun)
78 (31.2)
22 (28.2b)
17.9–38.4
Rearing systems
Nonfarming
80 (32)
37 (46.3a)
35.1–57.4
0.016
Farming
170 (68)
52 (30.6b)
23.6–37.6
Feeding systems
Stall feeding
150 (60)
43 (28.7a)
21.4–35.9
0.005
Grazing
100 (40)
46 (46b)
36.1–55.9
Values with different superscripts differ significantly () within the variable under assessment; n, number of positive isolates; CI, confidence interval; Nov, November; Feb, February; Jul, July; Oct, October; Mar, March; Jun, June.
