In Chile, South America, one of the countries where the new coronavirus is being vaccinated, the effectiveness of the Chinese vaccine used by most people is declining, and a new Western vaccine is being vaccinated. I did.

In Chile, two-thirds of the population has already been vaccinated twice, and more than 70% of them used the vaccine developed by the Chinese pharmaceutical company Sinovac.



The Chilean government began additional vaccinations on the 11th, saying that the vaccine is "less effective in preventing its onset."



This time, the vaccine will be used for elderly people who have completed vaccination by March, and this time, the vaccine jointly developed by Pfizer in the United States and Biontech in Germany and the vaccine developed by AstraZeneca in the United Kingdom will be used.



In Chile, more than 1.6 million people have been confirmed to have been infected and more than 36,000 have died, including the spread of the first reported mutant virus "Lambda strain" in neighboring Peru.



In South American countries, the number of confirmed infections of the highly infectious mutant virus "Delta strain" is increasing, and Uruguay has also strengthened its vigilance by deciding additional vaccination with Pfizer vaccine for those who have completed vaccination with Chinese vaccine. I have.