Re <<Or... it says "something else" is making the Delta variant have a greater impact in one place, or in one group of people, more than in another...? >>VIDEO cnbc.com Yen Nee Lee faces growing scrutiny , compounded by a lack of data on their protection against the more transmissible delta variant. CNBC found that weekly Covid cases, adjusted for population, have remained elevated in at least six of the world’s most inoculated countries — and five of them rely on vaccines from China.Our World in Data , which compiles information from sources including the World Health Organization, governments and researchers at the University of Oxford. CNBC then identified countries among those 36 where more than 60% of the population has received at least one dose of Covid vaccine.Seychelles , Mongolia, Uruguay and Chile . The one country among them that doesn’t depend on Chinese vaccines is the United Kingdom .2.3 million doses of vaccine by China’s state-owned Sinopharm . That far exceeds the 80,000 doses of Russia’s Sputnik V and around 255,000 doses of Pfizer-BioNTech shot that Mongolia received as of last week.Sinovac Biotech — compared with 3.9 million doses of Pfizer-BioNTech and smaller amounts of two other vaccines, Reuters reported last month .The UAE and Seychelles depended heavily on the Sinopharm vaccine at beginning of their inoculation campaigns, but each has more recently introduced other vaccines. In Uruguay, Sinovac’s shot is one of the two most-used vaccines, alongside Pfizer-BioNTech’s.more transmissible delta variant has spread there .rejected a delivery of vaccines developed by Sinovac after concluding it isn’t effective enough.Pfizer - BioNTech and Moderna , both of which have shown more than 90% efficacy.Sinopharm’s vaccine has an efficacy of 79% against symptomatic Covid infections, the WHO says, but its effectiveness among certain groups — such as people 60 and older — isn’t clear. The efficacy of Sinovac’s shot has come in at around 50% to higher than 80%, depending on the country where trials were held.the South China Morning Post reported. a tried and tested method that has been used by vaccines for decades. Pfizer-BioNTech and Moderna based their vaccines on a technology called messenger RNA, which instructs the body to make viral proteins that induce an immune response.Here’s what you need to know about the lambda Covid variant New Covid outbreaks a top risk to economic recovery, OECD chief says Pfizer says it is developing a Covid booster shot to target the highly transmissible delta variant Americans will need masks indoors as U.S. heads for ‘dangerous fall’ with surge in delta Covid cases wrote in an article published on The Conversation website.such as Sweden , wound up being hit much harder by Covid than neighboring countries that went the vaccination route.A study the University of New South Wales’s Kirby Institute in Sydney claimed that in the Australian state of New South Wales, herd immunity could be achieved if 66% of the population received vaccines with 90% efficacy against all infection. 
