Table. Information on rodents with unambiguous (n = 1) or inconclusive (n = 11) positive serum samples in ELISA testing in study of surveillance of rodent pests for severe acute respiratory syndrome coronavirus 2 and other coronaviruses, Hong Kong*.
| Animal code | Rattus species | Collection date | District | ELISA A/CO |
sVNT, inhibition, % | |
|---|---|---|---|---|---|---|
| 1st replicate | 2nd replicate | |||||
| Rat-027 |
R. tanezumi
|
Feb 11 |
Sham Shui Po |
0.019 |
0.855 |
1.281 |
| Rat-069 |
R. norvegicus
|
Feb 24 |
Kowloon City |
0.837 |
0.964 |
0.991 |
| Rat-070 |
R. norvegicus
|
Feb 24 |
Kowloon City |
1.199 |
0.472 |
–2.128 |
| Rat-073 |
R. tanezumi
|
Feb 25 |
Yau Tsim Mong |
1.445 |
0.033 |
2.224 |
| Rat-076 |
R. norvegicus
|
Feb 25 |
Sham Shui Po |
1.644 |
0.027 |
1.136 |
| Rat-089 |
R. norvegicus
|
Mar 1 |
Yau Tsim Mong |
1.324 |
–0.041 |
1.209 |
| Rat-090 |
R. norvegicus
|
Mar 1 |
Yau Tsim Mong |
1.636 |
–0.027 |
–0.532 |
| Rat-096 |
R. norvegicus
|
Mar 2 |
Yau Tsim Mong |
0.934 |
–0.007 |
3.748 |
| Rat-097 |
R. norvegicus
|
Mar 2 |
Yau Tsim Mong |
1.592 |
0.013 |
–4.666 |
| Rat-098 |
R. tanezumi
|
Mar 2 |
Sham Shui Po |
1.920 |
–0.724 |
–2.466 |
| Rat-102 |
R. norvegicus
|
Mar 3 |
Kwai Tsing |
0.992 |
–0.499 |
0.145 |
| Rat-213† | R. norvegicus | May 10 | Yau Tsim Mong | 13.643 | 14.497 | 31.7 |
*A/CO was interpreted as negative if <0.9, borderline if 0.9–1.1, and seropositive if >1.1, according to manufacturer instructions. Serum was considered unambiguously positive if both replicates were seropositive. Positive cutoff for sVNT was 20% inhibition, as described elsewhere (9). A/CO, absorbance cutoff; sVNT, surrogate virus neutralization test. †Positive in both ELISA and sVNT.