Several states and cities recommend residents older than 18 seek an additional shot six months after their initial immunization.

As Covid-19 cases in the US begin to rise once more and health agencies consider booster shots for all adults, some states and cities are taking matters into their own hands and urging additional shots, advice that goes beyond current federal guidelines.

Leaders in Colorado, California, New Mexico, Arkansas, West Virginia, and New York City recommend that residents older than 18 seek an additional shot six months after their initial immunization.

These states and cities have little in common, except their health systems have been stretched to a breaking point before during the pandemic – and one-third or more of their population is still unvaccinated. Read more at the Guardian.