Mere days after reporting high demand for COVID-19 booster shots, authorities have immediately widened access to all whose second shot was at least six months ago.Co-coordinator of the vaccine campaign, Major David Clarke, confirmed the development on Monday.He disclosed that all adults who received their second dose of the AstraZeneca vaccine six months ago or longer will qualify for the booster or third shot. It will be administered at all vaccination sites across the island from Tuesday.