Volume 31, Number 1—January 2025
Research
Ongoing Evolution of Middle East Respiratory Syndrome Coronavirus, Saudi Arabia, 2023–2024
Table
Characteristics of camels with MERS-CoV–positive swab samples across 6 sampling sites, Saudi Arabia, 2023–2024*
Characteristics | Total no. | Sajir | Al Duwadimi | Al Riyadh | Al Quwayiyah | Shaqra | Jeddah |
---|---|---|---|---|---|---|---|
Total no. camels sampled |
558 |
94 |
90 |
108 |
97 |
68 |
101 |
Swab samples taken |
576 |
97 |
101 |
108 |
98 |
68 |
104 |
Younger camels† |
291 (52.2) |
50 (53.2) |
24 (26.7) |
60 (55.6) |
48 (49.5) |
27 (39.7) |
82 (81.2) |
MERS-CoV–positive camels |
217 (38.9) |
28 (29.8) |
63 (70.0) |
58 (53.7) |
21 (21.6) |
11 (16.2) |
36 (35.6) |
MERS-CoV–positive samples |
235 (40.8) |
31 (32.0) |
74 (73.3) |
58 (53.7) |
22 (22.4) |
11 (16.2) |
39 (37.5) |
MERS-CoV–positive camels† |
111 (19.9) |
14 (14.9) |
17 (18.9) |
35 (32.4) |
12 (12.4) |
5 (7.4) |
28 (27.7) |
Mean PCR Ct (range) |
26.2 (10.0–34.0) |
23.4 (13.0–32.0) |
27.2 (14.0–32.0) |
27.9 (14.0–33.0) |
24.4 (15.0–32.0) |
16.2 (10.0–25.0) |
27.7 (11.0–34.0) |
Mean PCR Ct (range)† |
26.4 (10.0–34.0) |
24.5 (13.0–32.0) |
27.1 (14.0–31.0) |
27.2 (14.0–33.0) |
23.9 (15.0–31.0) |
14.0 (10.0–17.0) |
28.9 (17.0–34.0) |
Sequenced samples |
51 |
13 |
4 |
8 |
8 |
9 |
9 |
MERS-CoV genomes, >90% complete |
42 |
12 |
4 |
8 |
8 |
4 |
6 |
HCoV-229E samples, >10% complete |
9 |
3 |
1 |
0 |
0 |
0 |
5 |
HCoV-229E genomes, >90% complete | 7 | 2 | 0 | 0 | 0 | 0 | 5 |
*Values are no. (%) except as indicated. Ct, cycle threshold; HCoV, human coronavirus; MERS-CoV, Middle East respiratory syndrome coronavirus. †Camels <2 years of age.
1These first authors contributed equally to this article.
2These senior authors contributed equally to this article.
Page created: October 30, 2024
Page updated: December 22, 2024
Page reviewed: December 22, 2024
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