South Korea finished its first week of rolling out long-awaited Covid-19 inoculations in the country with thousands of suspected adverse reactions to AstraZeneca's vaccine, seven of which resulted in deaths. The number who died after the jab rose by four in the past two days, according to a report on Saturday by South Korea's Disease Control and Prevention Agency (KDCA), which is investigating the incidents. Vaccines were administered to more than 296,000 people, or about 0.6 percent of the country's population, during the first week of the rollout. South Korea has reported more than 2,800 adverse reactions from Covid-19 vaccines. South Korea generally has some of the highest vaccination rates in the world, and it boasts some of the most effective Covid-mitigation efforts. South Korea has reported more than 92,000 Covid-19 cases among its 52 million population, and only 1,632 deaths as of Saturday. By comparison, the UK, which has a population of about 67 million, has had more than 4.2 million cases and 124,000 deaths. But South Korea suffered a vaccine scare last fall, when at least 83 people died shortly after taking seasonal flu shots. The KDCA said it found no evidence that any of those deaths were caused by the shots.