issued a statement on Thursday backing the use of FDA-authorized vaccines for all public school educators.The NEA said it has strived to follow the science throughout the pandemic, and that the science on the vaccines is clear: "They have proven to be enormously effective in fending off infection and, in ‘breakthrough’ cases, preventing serious illness."RELATED: History of vaccine mandates in the United States"Evidence shows that COVID-19 vaccines, combined with other safety measures are the most powerful weapon we have against the pandemic," NEA President Becky Pringle said. "We believe that such vaccine requirements and accommodations are an appropriate, responsible, and necessary step to ensure the safety of our school communities and to.