Corona 19 ‘fourth pandemic’, the cause is ‘delta mutation’

On the 11th, citizens who visited the screening clinic set up at the Songpa-gu Public Health Center in Seoul waited in a long line for their turn. News 1

It was found that the delta-type (Indian-type) mutant virus was detected twice as much as the alpha-type (UK-type) in the metropolitan area, where the fourth wave of the novel coronavirus infection (COVID-19) is intensively occurring.

According to the spread of the epidemic, the number of confirmed cases of the elderly aged 60 and over, a representative high-risk group for COVID-19, increased by 20 in the past week to 78.

The management ratio within the quarantine network, which shows the proportion of new confirmed cases in self-isolation, fell to the 40% level.

Sohn Young-rae, head of the Social Strategy Division of the Central Accident Resolving Headquarters of the Ministry of Health and Welfare, held a briefing at the government complex in Seoul on the afternoon of the 11th and said, “It is a worrying part because the delta mutation is increasing and is being detected more than the alpha mutation. “Last week, delta mutations were detected about twice as much as alpha mutations.”

According to the World Health Organization (WHO), the delta mutant virus is 2.4 times more contagious than the existing Corona 19 virus and 1.64 times higher than the alpha mutation first discovered in the UK.

According to the Korea Centers for Disease Control and Prevention (KCDC) on the 8th, the analysis of samples from confirmed patients in the domestic community in the metropolitan area for a week from June 27th to the 3rd of this month showed that the detection rate of major mutations was 39.3%, with 26.6% for alpha type and 26.6% for delta type. This was 12.7%.

Sohn, the head of social strategy division, said, “The fourth epidemic is progressing with a new aspect in which the infection spreads through small contacts in everyday life and the virus spreads faster and more easily as the number of delta-mutated viruses increases.”

According to the weekly quarantine management status and risk assessment of the Central Disaster and Safety Countermeasures Headquarters (Critical Headquarters), the average number of new confirmed cases in Korea during the week from July 4 to 10 was 992.4, an increase of 337.4 from 655.0 the previous week.

Among them, the daily average number of confirmed cases over the age of 60 was 78.1, an increase of 19.5 from the previous week’s 58.6.

By region, the average number of patients aged 60 and over was the largest in the metropolitan area with 60.3, followed by Chungcheong with 7.4, Gyeongnam with 4.0, Gangwon with 1.9, Honam and Jeju with 1.7 each, and Gyeongbuk with 1.0.

The proportion of management within the quarantine network was 36.9%, a decrease of nearly 11 percentage points from 47.1% three weeks ago (June 13-19).

On the other hand, during the same period, the rate of infection route surveys increased from 24.3% to 31.9%.

The average number of confirmed cases imported from abroad soared from 26.6 to 62.0 during the same period.

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