CDC isn't overly concerned as Avian Influenza outbreaks were found in domesticated flocks in Maryland, Missouri, Indiana, Connecticut and Iowa last week.
Those who received the Pfizer-BioNTech, Moderna or J&J vaccines are less likely to die from non-COVID-related causes, a CDC study found.
Vaccinated people had a similar amount of virus presence as the unvaccinated, suggesting that, unlike with other variants, vaccinated people infected with the Delta variant could transmit the virus.
"The benefits do clearly outweigh the risk from a population and individual perspective."
Air travel still remains down 43% from pre-COVID levels and business and international travel remain even harder hit.
"We believe with the strategies we have put forward that there will be limited to no transmission in schools if followed," CDC Director Rochelle Walensky told reporters.