Details of infection status of new corona in Tokyo What is the positive rate? What is the infection route?

Details of infection status of new corona in Tokyo What is the positive rate? What is the infection route? August 5, 17:09

The new coronavirus spread rapidly all over the country last month. Looking at the situation in Tokyo, where the number of confirmed infections is the highest in Japan, the situation has changed especially since April when the emergency declaration was issued.

Number of new positives

Looking at the "number of new positives" for the new coronavirus by month, the number
was the highest ever, 3748 in
April, 6466 in July, an increase of approximately 1.7 times.

In
terms of the average number of people per day, ▽April was 124.9, while
▽July exceeded 200, reaching 208.6.

On the other hand, comparing those who do not know the route of infection, as of the 3rd of this month, in
April, 64.8% of the number of “new positives” was 2427, in
July, 52.8%, which was 3415, and
the percentage of the total decreased. However, the number of people increased 1.4 times.

The average number of people per day was 80.9 in April, compared with 110.2 in July, exceeding 100.

In addition, in July, comparing the average number of people in a week until that day with the average in the previous week, we can see that the number of people who exceeded the previous week on all days is increasing, and the number of people who do not know the infection route continues to increase. ..

Reasons for increased infection confirmation

One of the reasons for the increase in confirmation of new infections in the city is the increase in the number of tests.

Comparing by month, the average per day was
▽1007 cases in April ▽
1150 cases in May
▽1802 cases in June
▽4166 cases in July
, the number of inspections increased every month, Was about 2.3 times in June.

In addition to increasing the number of outpatient clinics that can be inspected at medical institutions and the Tokyo Metropolitan Government supporting the introduction of inspection equipment, people who worked in the downtown area at night were called to be inspected. The main reason is that after mid-July, more than 5,000 and more than 6,000 cases per day have appeared.

The metropolitan government wants to promote treatment and medical treatment by finding a positive person as soon as possible to prevent the seriousness of patients and prevent the spread of infection.

In the future, we are aiming to secure a processing capacity of up to 10,000 cases per day by utilizing research institutions such as universities, and it is expected that the number of confirmed infections will increase to some extent in the future due to the active testing. ..

Positive rate is rising

While the number of new infections confirmed daily in Tokyo increases, what executives and experts in the city are paying attention to is the "positive rate," which is the percentage of people who test positive.

The Tokyo Metropolitan Government publishes the number of people who tested positive during the week up to that day divided by the average of those who tested positive during the week before that date as the "positive rate."

In April, when the number of inspections was significantly smaller than the present, more than half of the days were in the 20% to 30% range. After mid-May, when the number of new infections was drastically reduced, the number of tests increased, but the number of tests increased from around 1% to 2%, and the declaration of emergency was released on May 25. It was 1.0%.

However, it started rising in mid June and reached just 3% on June 25.

Even in the beginning of July, the upward trend did not change:
▽4% on July 2, ▽
5% on 7th
▽6% on 11th,
rose to 6.6% on 31st.

The Tokyo Metropolitan Government said that the positive rate was increasing. "It is also due to the fact that due to the expansion of the inspection system, people who are not considered to be rich contacts and those who do not have symptoms have been widely tested and confirmed to be infected. It is said.

On the other hand, he said, "The increase in the positive rate also indicates that the spread of infection is not suppressed, and caution is necessary."

Rapid increase in inpatients

The number of “inpatients” who have a direct impact on the medical care delivery system fluctuates as the number of people confirmed to be infected increases or decreases.

Since May 12, when the metropolitan government came to know and announce the exact number of inpatients, the peak was 1413 on the 12th, and the trend continued to decline for more than a month. It was decreasing to people.

However, the number of inpatients has been increasing since then, and it will increase rapidly in July when the infection spreads. On July 11th, there were more than 500 and 529, and on July 24th, there were more than 1000 and 1040.

By July 31st, the number had risen to 1197, an increase of approximately 4.3 times compared to 280 on July 1st.

Tokyo has already secured 2400 beds in Tokyo to accommodate the increasing number of inpatients, and plans to add more.

Experts in the metropolitan area have pointed out that “preparing the acceptance system is a difficult task. The medical field is really tight and exhausted”, and the sense of crisis that the number of inpatients continues to increase increases. I am.

Increasing number of critically ill patients

The number of “severely ill patients” is of particular interest when the executives and specialists in Tokyo analyze the situation of the medical service system.

As more critically ill patients respond to respirators and intensive care units, there is a greater risk that appropriate medical care will not be available to patients with other illnesses in addition to the new coronavirus.

Tokyo has announced the number of seriously ill patients since April 27, with the highest number at 105 on April 28 and 29.

After that, it continued to decline, falling below 10 on July 2 to 9, and on July 10 it was the lowest ever five.

However, after that, it started to increase again, exceeding 10 on July 17, 22 on July 30, but 16 on the following day 31.

Although it is still low compared to April and May, experts in Tokyo point out that the increase in critically ill patients will occur for a while after the increase in the “new positives”.

Tohoku has secured 100 beds for critically ill patients so far, and depending on the future situation, we will consider strengthening the system.

Transmission route and spread to age

In July, the spread of infection routes and ages of newly confirmed people are seen.

Of these, the number of employees and customers of restaurants with entertainment in the downtown area at night was 1225 during the month of July, accounting for 18.9% of the total.

Shinjuku Ward and Toshima Ward are actively calling for inspection, and they are focusing on measures in cooperation with the capital, and on July 10, 110 people were confirmed to be infected only by the people involved in the restaurant with entertainment. , The overall ratio reached 45.3%.

However, the percentage of the whole is gradually decreasing from mid to late, and there are days when it falls below 10%.

On the other hand, infections from people who are close to us are increasing.

In one month of July,
▽Infection at home was 582 people
▽Infection at work was 379 people
▽Infection at dinner was 349 people
▽ Infection in facilities such as schools and medical institutions was 258 people did.

The average per day is
▽ 18.8 in the household ▽
12.2 in the workplace
▽ 11.3 at the dinner
▽ 8.3 at the facility.

On the other hand, by age group of people who have been confirmed to have been infected, although the majority are younger people in their 20s and 30s, the infection has spread to middle-aged and older people.

Compared to June, the number of new positives in July
was 487 people in their 50s 7.1 times, 487 people in their
60s 247 people in 5.7
times, 163 people in their 70s 4.3 times, and those in their
80s and above The number has increased by 4.1 times to 118 people.

Over 60% of the dead over 60

By the end of July, 333 people in Tokyo were infected with the new coronavirus and died.

Looking at the days of death by month,
▽February 1
▽March 17
▽April 181
▽May 107, about 93% or 306 died by the end of May ..

This includes inpatients from multiple medical institutions where clusters occurred, as well as comedian Ken Shimura and actor Kumiko Okae.

After that, the number decreased to
21
in June and 6 in July.

By age group of those who died:
▽
1 in 20s ▽ 1 in 30s ▽
5 in 40s ▽
18 in 50s ▽
32 in 60s ▽
95 in 70s
▽ 115 in 80s
▽63 people in their 90s ▽
3 people over 100 years old.

Under 10s and teens have not been confirmed.

The percentage of elderly people is high in about 93% of people over the age of 60, and about 83% in those over the age of 70.