While a new wave of Covid-19 infections, driven by two sub-variants, has led to a surge in cases around the world, after a recent increase cases in the UAE have started to decline again. The earlier rise in the emirates saw the validity period of the <a href="https://www.thenationalnews.com/uae/2022/04/13/what-does-the-crossed-out-syringe-on-al-hosn-app-mean/">Al Hosn Green Pass app</a> reduced to two weeks to curb the spread of infection. Previously, a negative <a href="https://www.thenationalnews.com/uae/2022/04/28/will-your-child-need-a-pcr-test-to-return-to-uae-schools-after-eid-break/">PCR</a> result from a vaccinated person would turn the pass green for 30 days. As the UK starts discussing the need for <a href="https://www.thenationalnews.com/coronavirus/2022/03/17/another-uk-covid-booster-could-be-rolled-out-in-autumn-health-secretary-says/" target="_blank">autumn boosters</a>, when should UAE residents get their next dose of Covid-19 vaccine? <i>The National </i>explains. In February, authorities urged citizens and residents in Abu Dhabi to get a fourth Pfizer-BioNTech or <a href="https://www.thenationalnews.com/uae/2021/12/29/what-is-the-new-uae-approved-sinopharm-vaccine-and-how-does-it-work/">Sinopharm</a> vaccine. These people were eligible, according to the rules: <b>People who have had two or three doses of Sinopharm</b> can receive a booster dose of Sinopharm or <a href="https://www.thenationalnews.com/uae/health/2022/02/02/pfizer-shots-in-dubai-young-children-vaccinated-before-mid-term-break/">Pfizer</a> six months after the last dose they received. <b>Those who have had two doses of Sinopharm and one Pfizer-BioNTech booster</b> can receive a booster dose of <a href="https://www.thenationalnews.com/uae/2021/11/29/dubai-begins-booster-shot-appointments-as-omicron-spreads-globally/">Pfizer</a> six months after the last dose they received. <b>After having two or three doses of Pfizer-BioNTech</b> people can receive a booster dose of Pfizer after a gap of six months. <b>High-risk people </b>can receive a booster dose three months after their last shot. People not eligible for another dose of any vaccine are those who have received two shots of <a href="https://www.thenationalnews.com/world/uk-news/2021/09/18/will-sinopharm-be-accepted-for-uk-uae-travellers/" target="_blank">Sinopharm</a> and two of Pfizer-BioNTech. In Dubai, <i>The National</i> was told by the DHA helpline that If you have had three doses of Pfizer, or two of <a href="https://www.thenationalnews.com/tags/sinopharm/" target="_blank">Sinopharm</a> and two of <a href="https://www.thenationalnews.com/coronavirus/2022/01/03/pfizer-vaccine-booster-do-i-qualify-and-how-can-i-book-my-appointment-in-dubai/" target="_blank">Pfizer</a>, that you do not need any additional shots. Yes, <a href="https://www.thenationalnews.com/uae/health/2022/02/08/abu-dhabi-announces-fourth-doses-of-pfizer-and-sinopharm-covid-19-vaccines/" target="_blank">in February</a> authorities in Abu Dhabi said a fourth shot would enhance public safety. It is not mandatory. People who had a third vaccine more than six months ago do not yet have to get another shot to maintain their green pass status. It is not recommended. And some centres are reportedly refusing to administer a fifth dose. But others are allowing it with the express permission of a doctor after a medical evaluation.