evidence: States and local health departments struggle to implement mass vaccination programs while facing a surge in COVID-19 cases and record-breaking hospitalizations, TIME reports. Staff shortages and shrinking budgets complicate efforts to receive, store, distribute, track, and administer vaccines, as well as monitor individuals for adverse events. [...] With current vaccines still prioritized for older Americans and those with underlying heath conditions, as well as health care workers, the 3 pharma giants reveal their testing plans for younger Americans. Moderna is testing doses among 12- to 18-year-olds, Pfizer is said to have recruited 12- to 15-year-olds, and AstraZeneca and Oxford University report wanting to compare outcomes among 6- to 11-year-olds and 12- to 18-year-olds. [...] The CDC announces that individuals who are fully vaccinated can travel domestically at low risk to themselves, but should still adhere to COVID-19 precautions such as mask wearing and social distancing. Travel is still not recommended due to rising numbers of cases in the United States.