Volume 22, Number 12—December 2016
Dispatch
Time Course of MERS-CoV Infection and Immunity in Dromedary Camels
Table
MERS-CoV nucleic acid detection in nasal swab specimens from camel dam–calf pairs, United Arab Emirates, 2014–2015*
Months postparturition |
No. positive/no. tested (%) |
|
---|---|---|
Adults† |
Calves‡ |
|
0 | 0/5 | 0/5 |
0.25 | 3/11 (27.2) | 2/11 (18.2)§ |
1 | 2/11 (18.2) | 5/11 (45.5) |
2 | 0/11 | 0/11 |
3 | 0/11 | 0/11 |
4 | 0/5 | 0/5 |
5 | 0/11 | 0/11 |
6 | 0/11 | 2/11 (18.2)¶ |
7 | 0/10 | 0/10 |
8 | 0/10 | 0/10 |
9 | 0/10 | 0/10 |
10 | 0/10 | 0/10 |
11 | 0/10 | 0/10 |
12 | 0/10 | 0/10 |
*One dam–calf pair was excluded after month 6 because the calf was euthanized for an unrelated condition. MERS-CoV, Middle East respiratory syndrome coronavirus.
†5 MERS-CoV–positive specimens from adult camels were from 4 individual animals.
‡9 MERS-CoV–positive specimens from camel calves were from 6 individual animals.
§Virus was isolated from both infected calves.
¶Virus was isolated from 1 infected calf.