UN News:  People with weaker immune systems should receive an additional shot of approved COVID-19 vaccines, an advisory group to the World Health Organization (WHO) said on Monday. The recommendation follows a four-day meeting of the Strategic Advisory Group of Experts (SAGE) on Immunization. A final report will be issued in December. Risk of severe disease SAGE said moderately and severely immunocompromised persons should be offered an additional dose of all WHO approved vaccines “since these individuals are less likely to respond adequately to vaccination following a standard primary vaccine series and are at high risk of severe COVID-19 disease.”