The Government of Saudi Arabia has mandated all arrivals to take a booster dose of a Saudi-approved vaccine as a prerequisite to enter the Kingdom. According to the latest updates, those who have received two doses of Sinopharm and Sinovac vaccines should take the booster dose for entry. The booster dose should be of either any one of the approved vaccines such as Pfizer, AstraZeneca, Johnson & Johnson and Moderna. A booster COVID dose works as an additional dose that strengthens protection and offers more defensive properties to the immune system to prevent any attacks from the pathogen, or in case, a virus. As per experts, it is intended to increase immunity against that antigen back to protective levels after memory against that antigen has declined through time. Booster shots for other diseases have also been in common use for a long time. Vaccines that prevent tetanus, polio and hepatitis B have received booster shots to offer more protection. The vaccination drive in Saudi Arabia is progressing commendably well, with a slice of the population being fully vaccinated to date. So far, four vaccines have been approved for emergency use in the Kingdom and a few more strictly for incoming travel which are Pfizer, AstraZeneca, Johnson & Johnson and Moderna. As for who are eligible for entry into Saudi Arabia, apart from Saudi residents, entry to Saudi Arabia is extended only to government, business and essential travellers or those visiting friends and family. This means that non-Saudi nationals holding tourist visas are currently not allowed to enter the Kingdom. Travelling with ID has also been suspended for GCC citizens. The details of travelling from UAE to Saudi Arabia, everything you need to know thru Visanations, which is the best Saudi Visa Agent in Dubai, providing the best Saudi Visa Services from UAE. Also, Visanations will provide Saudi business and Visit Visa, Saudi Visa for UAE residents.