The agency released a unified "practical" guidance for respiratory viruses.The CDC acknowledged that the eased isolation guidance will create "residual risk of SARS-CoV-2 transmission," and that most people are no longer infectious only after 8 to 10 days. As such, the agency urged people to follow additional interventions—including masking, testing, distancing, hygiene, and improving air quality—for five additional days after their isolation period.
Sawse: Background for CDC’s Updated Respiratory Virus Guidance
can’t merge the flu shot with covid vac and tell anyone, unless you first say covid is now the flu.
for sure don’t take a flu shot.