But when the public health emergency ends May 11, laboratories across the country will no longer be required to report Covid test results to the Centers for Disease Control and Prevention. That will eventually mean no more weekly infection, transmission and community-level numbers in CDC’s Covid Data Tracker. The post-emergency regime will lead to other changes, health officials said: Covid death counts that were once based on case reporting will instead be derived from death certificates. Vaccination data will only be available from jurisdictions that agree to continue sharing those numbers beyond the end of the public health emergency. Many have already done so, said Brendan Jackson, the lead of the CDC’s Covid response.