Sens. Warren and Booker , Have Breakthrough COVID-19 Infections.br Sens. Warren and Booker , Have Breakthrough COVID-19 Infections.br The Associated Press reports both Democratic senators have tested positive for COVID-19.br The Associated Press reports both Democratic senators have tested positive for COVID-19.br Both were fully vaccinated and br also received booster shots.br Warren and Booker issued statements br praising the vaccines.br Warren and Booker issued statements br praising the vaccines.br Thankfully, I am only experiencing mild symptoms & am grateful for the protection provided against serious illness that comes from being vaccinated & boosted, Sen. Elizabeth Warren, via Twitter.br I’m beyond grateful to have br received two doses of vaccine br and, more recently, a booster — br I’m certain that without them br I would be doing much worse, Sen. Cory Booker, via statement.br Neither senator has said where they br might have contracted the virus.br COVID-19 cases continue to surge as the Omicron and Delta variants spread.br Health experts maintain that vaccination remains the best protection against all strains of coronavirus.