Wealthy Countries, Clamor for , Booster Shots.br Wealthy Countries, Clamor for , Booster Shots.br CNN reports wealthy countries br across the globe are rapidly expanding COVID-19 booster shot programs.br CNN reports wealthy countries br across the globe are rapidly expanding COVID-19 booster shot programs.br Concerns of diminished vaccine efficacy and the inevitable rise of cases this winter are fueling these expansions.br Concerns of diminished vaccine efficacy and the inevitable rise of cases this winter are fueling these expansions.br Pfizer-BioNTech has sought emergency br use authorization from the FDA to br allow all Americans age 18 and olderbr to receive a booster shot.br Booster shots are currently available to br the elderly and immunocompromised br as well as the essential workforce.br Booster shots are currently available to br the elderly and immunocompromised br as well as the essential workforce.br Pfizer-BioNTech says their booster br shot offers 95 efficacy against br symptomatic COVID-19.br While wealthy communities bolster br their immunity, the world's poorest br countries remain largely unvaccinated.br Data shows that of all the br citizens of Africa, merely br 6.29 are fully vaccinated.br But in the U.K. and U.S. for example,br 67 and 58.5 have been fully vaccinated, respectively.br But in the U.K. and U.S. for example,br 67 and 58.5 have been fully vaccinated, respectively.br The World Health Organization says br that inequalities such as these will br "easily drag on deep into 2022.