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Covid latest: Delta variant threat and mix and match vaccinations Updated: 2021-06-22 16:22:34 KST

For more on the latest developments of Covid-19 and vaccinations, we're joined by Dr. Alice Tan, Internist at MizMedi Women's Hospital.
It's always great to have you with us.

The world is keeping a keen eye on the fast spreading Delta variant as cases of the variant surged in countries that boast the world's highest vaccination rate. UK, for instance, has vaccinated 80% of adults and yet the Delta variants caused infections to spike again while in Israel, over 70% of newly infected cases are assumed to be of the Delta variant. How do you assess the global threat of the Delta variant?

Starting next month, gathering restrictions will be eased throughout all regions in Korea, while cafes, restaurants and nighttime establishments will also be allowed to operate until midnight. This comes as global experts continue to send warnings that the Delta variant is up to 70% more transmissible than the UK, or the Alpha variant. What's your analysis of the Delta variant threat in Korea as the country gears up to ease anti-virus restrictions?

Experts are divided on the efficacy of the AZ vaccine against the fast spreading Delta variant, with some saying that it's 60% effective at best against the variant, which the WHO says is now the most dominant variant of SARS-CoV-2. Over 65% of Koreans who received their first shot of covid vaccine were administered with AZ vaccine. Do need to be worried?

Korea will introduce a 'mix-and-match' administration of covid vaccines starting tomorrow for some 200-thousand people who got the AZ vaccine for their first shot. They will receive Pfizer vaccine for their second shot. Are there any safety concerns about the mix-and-match vaccination? Has the world seen any serious adverse after-effects from mixing covid vaccines?

As Delta variant rages on, several countries, including the U.S., Germany, Singapore and Israel have expanded vaccinations to age of 12, while more countries are joining the trend with Denmark and Japan set to begin inoculating adolescents in the coming months. Korea has allowed Pfizer vaccines to 12th graders who will take their college entrance exam this year but is yet to allow full vaccinations on adolescents. What's your take on vaccinating 12 to 15- year-olds, and would Korea also join the trend soon?

Education minister Yoo Eun-hye has recently said that the chances of students infected with Covid-19 falling critically ill is slim to none. How do you assess the risks of Covid-19 on children and adolescents?

Tokyo Olympics are just a month away, and a member of Uganda's Olympic squad tested positive for Covid-19 upon arrival in Japan becoming the first Olympic athlete to test positive. And despite strong oppositions from the Japanese public, the country has decided to allow up to 10-thousand local spectators placing a 50% cap at venues. What are your thoughts on the safety concerns over the upcoming games?

Thank you as always for your expertise.
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