Persistent immunity to coronaviruses reported in earlier studies

(HealthDay)-Scientists say that people who have only mild symptoms of COVID-19 show signs of persistent immunity to the coronavirus.

Many studies have shown that, like B and T cells that can recognize the virus, disease-fighting antibodies appear to persist for months after the infection progresses, New York Times report.

“This is exactly what you want. Everything is there to make a fully protective immune response,” says an immunologist at the University of Washington, one author of a new study currently under review. Said Marion Pepper. By journal Nature..

“It’s very promising,” said Sumita Ayer, an immunologist at the University of California, Davis, who studies the immune response of rhesus monkeys to coronaviruses. Times.. “This requires some optimism for herd immunity and potentially a vaccine.”

Researchers cannot predict the duration of these immune responses, but experts are the first evidence that the body is likely to protect against coronaviruses if the data are re-exposed to coronaviruses. I think.

“It really works as expected,” said Deepta Bhattacharya, an immunologist at the University of Arizona. Times.. Bhattacharya is the author of one of the new studies, medRxiv, Health research It has not been peer reviewed.

The country’s second largest school district has announced an ambitious COVID-19 test program, while scientists race to find ways to reach herd immunity to coronaviruses. Los Angeles Unified said it plans to regularly test approximately 700,000 students and 75,000 employees to determine when face-to-face instruction can be safely resumed. Washington Post report.

The district was the first one in the country to announce that students would never return to the classroom in the fall. Working with the University of California, Los Angeles, Johns Hopkins University, Stanford University, Microsoft, and leading health insurance companies, the school district now has its own test and contact tracking system for school populations larger than many US cities. Build Position report.

Teachers working in the school building are the first to participate in the program. The test was then given to all other staff and students to establish a baseline, the newspaper reported. The district will also provide testing to relatives of students and staff who exhibit coronavirus symptoms.

COVID cases for children are on the rise when school resumes

Millions of American children have returned to school this month, but a new study shows that at least 97,000 children were infected with COVID-19 in the last two weeks of July. I will.

By July 30, at least 338,000 US children had a positive reaction, according to reports from the American Academy of Pediatrics and Children’s Hospital Association. Times report. That is, more than a quarter of these cases were positive only in the second half of July.

Already after the COVID-19 case was reported between students and staff, some schools had to attempt reopening and then order or close quarantine. Times report.

In the new report, southern and western states account for more than 7 out of 10 infections. This number could be higher, as the report does not include complete data for some of New York State outside of Texas and New York City.

There were differences in the way children were classified by state. In most places cited in the report, children were considered to be under the age of 17 or 19. However, in Alabama the age limit was 24, while in Florida and Utah it was 14. Times report.

Public health officials say most children aren’t ill, but a new report by the Centers for Disease Control and Prevention states that a more dangerous new COVID-19 condition, known as multisystemic inflammatory syndrome in children, makes children far more colored. I have found that I am hitting more often than white.

From early March to late July, the CDC received reports of 570 adolescents aged 20 to 20. Times report. Of these, 40% were Hispanic or Latino, 33% were black, and 13% were white. Reportedly, 10 people died and nearly two-thirds were admitted to the intensive care unit.

By Monday, the number of cases of the US coronavirus had exceeded 5.4 million as deaths approached 170,000. Times Aggregate.

According to the same tally, the top five states with coronavirus cases as of Monday are: There are more than 573,000 in Florida. Nearly 570,000 Texas. Over 430,000 New York. Georgia has more than 220,000 people.

A country confronting a pandemic

In other parts of the world, the situation remains difficult.

India is fourth highest than the UK Number of deaths In the world derived from coronavirus, after the United States, Brazil, Mexico, Position report.

By Monday, according to John Hopkins, by Monday, more than 2.6 million cases had been confirmed in India, killing about 51,000 people. Britain is still the worst hit country in Europe, Position report.

Brazil is also a hotspot for coronavirus pandemics, with more than 3.3 million confirmed by Monday, according to Hopkins tally. This is the second most common case after the United States.

Cases are increasing rapidly in Russia. As of Monday, the country reported the world’s fourth highest number of COVID-19 cases, with Hopkins totaling over 925,500.

Even in countries that haven’t seen New Zealand Coronavirus In 100 days, the case has not escaped.

On Monday, New Zealand Prime Minister Jacinda Adern said the country’s general election, scheduled for September 19, will be pushed back a month earlier. Position report. The move comes as New Zealand tackles the new wave of COVID-19 infections, prompting a return to blockade restrictions in parts of the country.

According to Hopkins, the number of infectious diseases reported worldwide exceeded 21.7 million on Monday, killing about 776,000.

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