The number of people infected with the new coronavirus is declining all over the world, and experts say that vaccination has progressed mainly in developed countries, and that many people are infected and have immunity in some areas. It is pointed out that the reason is that it has become.
On the other hand, as some countries are reducing their testing systems, the WHO = World Health Organization said, "The number of tests is decreasing and the number of infected people reported is also decreasing. The declining trend should be watched carefully. ".
After the infection of the new corona spread all over the world, the infection spreads every time a highly infectious mutant virus appeared, and among them, the infection was an order of magnitude after November last year when the Omicron strain spread. The number of people was reported.
According to a summary by Johns Hopkins University in the United States, the number of infected people per day in the world was about 700,000 to 900,000 even in April last year and August last year, which was the highest before the Omicron strain. However, this year, in mid-January, the number exceeded 4 million.
However, since then, the number of infected people has continued to decline, reaching the 700,000 level even on many days since last month, and about 270,000 on few days, which is about one-fifteenth of the peak.
Atsuo Hamada, a specially appointed professor at Tokyo Medical University, said that the factors behind the decline were that the vaccination rate increased mainly in developed countries, that many of the population were infected and the number of people with immunity increased, and that it was seasonal. There are various factors.
According to the website "Our World in Data" operated by researchers at Oxford University in the United Kingdom, the percentage of people who received a booster vaccine
was 65.1% in Germany
and 58.2% in the United Kingdom as of 31st of last month.
,
▽ France is 56.9%,
▽ EU as a whole is as high as 52.7%.
In low-income countries, less than 20% have been vaccinated even once, and in the United States, only 31.1% have been boosted, but the CDC = Centers for Disease Control and Prevention is in April. Analysis of antibodies to the new corona detected by blood tests across the United States reports that it is estimated that nearly 60% of the population has been infected so far.
Professor Hamada points out that "although vaccination rates are low in these countries, many people are actually infected and have immunity, which may lead to a decrease in infection."
However, the WHO = World Health Organization said in a weekly report issued on the 22nd of last month that the number of infected people is declining, but "In some countries, the number of infected people reported has decreased due to changes in testing strategies. Should be watched carefully, as it is also decreasing. "
Professor Hamada also said, "It can be said that the number of infected people is decreasing worldwide due to the effects of vaccines and immunity due to infection, seasonal factors, etc. However, the testing strategy is being reviewed in each country. In some countries, it is no longer trying to grasp the absolute number of infected people. It is becoming meaningless to compare the number of infected people by country, and the number of infected people in each country grasps trends such as increase and decrease in each country. You should see it in the sense of doing it. "