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Omicron has 36 mutations in its spike protein. Dr Shyam Raja Mohan, specialist internal medicine, Prime Hospital, explains exactly why Omicron has more chances of reinfection and can escape vaccination immunity. He says, "There are about 50 mutations in the omicron variant compared to the original Covid virus isolated in China in One of the most important areas on the Covid virus is the spike protein.
This is the part of the virus that comes into contact with human cells, and is a prominent target for the immune system. Antibodies attach to the spike protein and stop the virus from causing an infection. This makes the spike protein critical for how the virus functions and for how the immune system stops it. Within its spike protein, Omicron has mutations in the part of the spike that connects directly to a receptor called ACE2 on human cells. Omicron's mutations seem to increase its affinity for ACE2, allowing it to infect cells more efficiently, thereby increasing its reproduction rate and transmissibility.
Due to these changes, antibodies have a harder time recognizing and sticking to Omicron's spike. That may explain why Omicron seems to cause more reinfections and breakthrough infections in vaccinated people compared to other variants", adds Mohan. Beijing's 'closed loop' is sealed and guarded; precautions that will be put to the test as the highly transmissible Omicron surges globally. A three-dose course of Vaxzevria was effective against the rapidly spreading new variant.
With the ongoing booster schedule, residents are asking will this become like the flu vaccine? Some residents remain curious about the long-term need for taking the booster shots. Frontline workers are proud of the fact that the UAE has scaled the per cent milestone and they have played a part in the achievement.
I am hopeful to see the beautiful smiles on every face and for everyone to be able to travel without any fear. I want to say thank you to the government for their all-out support and the people in the UAE for their cooperation in our goal to end this pandemic. This ensures that soon we will be able to go back to our normal lives. Together we can overcome this pandemic. Beijing's 'closed loop' is sealed and guarded; precautions that will be put to the test as the highly transmissible Omicron surges globally.
A three-dose course of Vaxzevria was effective against the rapidly spreading new variant. Net new hospital admissions and people admitted to intensive care are at their highest in the pandemic. Victoria, which hosts the Grand Slam, reported 37, new cases of Covid on Thursday.
Lawmakers agreed to reopen theatres, cinemas, museums, entertainment parks and botanic gardens.
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