effectiveness
| Thread | Replies | Views | Activity | |
|---|---|---|---|---|
| Study shows dramatic decline in effectiveness of all three COVID-19 vaccines over time in the US |
|
14 | 991 | 12 November 2021 |
| Thread | Replies | Views | Activity | |
|---|---|---|---|---|
| Study shows dramatic decline in effectiveness of all three COVID-19 vaccines over time in the US |
|
14 | 991 | 12 November 2021 |