Volume 29, Number 4—April 2023
Dispatch
Experimental Infection and Transmission of SARS-CoV-2 Delta and Omicron Variants among Beagle Dogs
Kwang-Soo Lyoo, Hanbyeul Lee, Sung-Geun Lee, Minjoo Yeom, Joo-Yeon Lee, Kyung-Chang Kim, Jeong-Sun Yang, and Daesub Song
Table
Viral titers from nasal swab samples from animals in study of experimental infection and transmission of SARS-CoV-2 Delta and Omicron variants among beagle dogs
| Dog group |
Dog no. |
Days after exposure |
|||||
| 0 |
2 |
4 |
6 |
8 |
10 |
||
| Control |
NA |
NA |
NA |
NA |
NA |
NA |
NA |
| Infection | |||||||
| Delta | 1 | NA | 2.5 | 2.2 | NA | NA | NA |
| 2 | NA | 3.2 | 2.7 | NA | NA | NA | |
| Omicron | 1 | NA | 2.8 | NA | NA | NA | NA |
| 2 |
NA |
2.2 |
NA |
NA |
NA |
NA |
|
| Transmission | |||||||
| Delta | 1 | NA | 3.7 | 2.8 | NA | NA | NA |
| 2 | NA | 4.3 | 2.3 | NA | NA | NA | |
| Omicron | 1 | NA | 1.8 | 2.0 | NA | NA | NA |
| 2 | NA | 2.3 | NA | NA | NA | NA | |
*Values are 50% tissue culture infectious dose/mL. NA, not applicable.
Page created: January 11, 2023
Page updated: March 21, 2023
Page reviewed: March 21, 2023
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.