Hospital-level medical staff also vaccinated AZ from March 8th… Eun-kyung Jung “November group immunity possible”

On the afternoon of the 22nd, a man is entering a nursing hospital in downtown Seoul. The Central Defense Response Headquarters announced at a regular briefing that the AstraZeneca Corona 19 vaccination will begin to residents and workers under the age of 65 in nursing hospitals nationwide from 9 am on the 26th. News 1

Following the medical staff at nursing hospitals and infectious disease hospitals, medical staff at general hospitals will receive the Corona 19 vaccine from next month. The estimated 350,000 people are vaccinated against the AstraZeneca vaccine. As a result, the number of confirmed persons to be inoculated with Corona 19 exceeded 700,000. The quarantine authorities reaffirmed that the goal of achieving collective immunity by vaccinating 70% of the population by November can be achieved if it is at the current level.

Nursing hospital vaccination starts at 9 o’clock on the 26th…Corona medical staff from the 27th

At a regular briefing on the 22nd, Jung Eun-kyung, head of the Central Defense Countermeasures Headquarters (Disease Management Administration), said, “We will register the list of vaccinations for high-level hospitals, general hospitals and hospital level medical institutions by the end of this month. From now on, we plan to start vaccination with the AstraZeneca vaccine.” When over 65 years of age were excluded from nursing hospitals and nursing facilities where the first vaccination was to be made, more than half of the 750,000 original AstraZeneca vaccines remained, and this amount was allocated to workers at high-risk medical institutions, the next priority. Hospital-level medical institutions self-inoculate the AstraZeneca vaccine.

SK Bioscience, a domestic consignment manufacturer, begins shipping domestic AstraZeneca vaccines from the 24th and supplies it to the Icheon distribution center in Gyeonggi Province for 5 days. This quantity will be transported to nursing hospitals and public health centers nationwide on the 25th to 28th. Nursing hospitals with medical staff have their own, and nursing facilities without medical staff sign a contract with a consignment medical institution, and get vaccines from public health centers. The’Corona 19 Vaccination Management System’ will be opened on the 25th, a day before, to start vaccinations from 9 am on the 26th. When vaccination in nursing hospitals and facilities progresses to some extent, it is expected that the vaccine will be delivered to hospital level as well.

58,000 Pfizer vaccines (contracted quantity for’CoVax Facility’, a global vaccine joint purchase organization) will be transferred to the Central Vaccination Center and Regional Vaccination Centers at the National Medical Center in Jung-gu, Seoul after entering Incheon International Airport on the 26th. Starting with the central vaccination center on the 27th, vaccinations are conducted in the order of regional and regional vaccination centers, and in-house vaccination medical institutions. Hospitals dedicated to infectious diseases that treat patients with Corona 19, hospitals that operate severe patient treatment beds, and medical staff at the Life Therapy Center are eligible for vaccination. Hospitals with more than 120 vaccination targets bring vaccines to minimize the gap in the treatment of COVID-19.

Four variables of population immunity… Vaccine supply and demand, vaccination rate, epidemic pattern, mutant virus

Although vaccination has entered the countdown, there are many concerns about whether’November collective immunity’ is possible due to tight time. “It is not easy to manage the supply schedule due to the global lack of vaccines,” said Jung. “I believe that the November group immunity goal can be achieved if the vaccine supply time is as early as possible and the supply and demand management is thorough.”

According to Bang Dae-bon, assuming an infection reproduction index of 2, which indicates how many people infected by one infected person infects them, 50% of the antibody positive rate and 67% of 3 are required for collective immunity. Antibody positive rate refers to how many people have antibodies that trigger an immune response to COVID-19. “If 70% of the people are vaccinated and 80% of the people are vaccinated and antibodies are formed, the antibody positive rate will be 56%, thus securing immunity to respond to infection reproductive index 2 or higher,” said Jung.

In the end, in order to achieve the goal of forming collective immunity, it is said that in order to achieve the goal of formation of collective immunity, it is necessary to consider how much corona 19 is prevalent at the end of the year, and how much antibodies are formed in the vaccinators, as well as the size of vaccinations, which is a percentage of the population. “We plan to investigate how long the antibody is formed and how long it lasts in more than 200 vaccinated people for each type of vaccine at the beginning of vaccination,” Jung explained.

Also, mutant viruses are a major variable in population immunity. If the vaccine’s efficacy is low due to a large number of variations, less antibodies are produced, so more people need to be vaccinated to achieve the same antibody positive rate. The number of domestic mutant viruses was added on this day to a total of 128 cases (109 cases in the UK, 13 cases in South Africa, and 6 cases in Brazil).

Lim So-hyung reporter

News directly edited by the Hankook Ilbo is also available on Naver.
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