The case of a Nevada patient raises questions about the durability of immunity to coronavirus.
The number of Covid-19 cases worldwide is approaching 38 million, nearly 1.1 million people have died, and approximately 70 thousand patients are in serious and critical condition.
Experts link the fall surge in the pandemic to the resumption of classes in educational institutions and the dimming of people’s sense of danger.
For economic reasons, the government imposes a stricter quarantine than in the spring.
The WHO sees the creation of an effective vaccine as the only hope for humanity.
A 25-year-old resident of the state of Nevada received Covid-19 twice – in April and June of this year, according to an article recently published in the Lancet.
The young man is currently healthy, but his case raises questions about the sustainability of acquired immunity to the coronavirus.
The second time, the illness was more severe.
The patient had to be hospitalized due to lack of oxygen.
He did not have any concomitant diseases or immune system problems, and he did not belong to any category of people who are particularly susceptible to Covid-19 based on any signs.
According to the comparative analysis of the viral genetic code, this was a repeated infection and not a relapse of the same disease.
“The study we conducted proves that a person who has recovered from coronavirus is not guaranteed to be immune to reinfection,” says Dr. Mark Pandori of the University of Nevada.
According to him, even those who have recovered should still follow the rules of wearing masks, social distancing, and frequent hand washing.
Scientists continue to grapple with difficult questions about coronavirus immunity.
How long does the immunity last?
Does everyone develop it at the same rate, including those who have had a mild form of the disease?
However, documented cases of reinfection are rare – only a few out of 37 million infected people.
Patients in Hong Kong, Belgium, and the Netherlands had the same course of relapse as the first time.
Only one person in Ecuador, like the Nevadan, suffered more severely the second time, but he did not require hospitalization.
“Tens of thousands of volunteers and similar pauses in vaccine testing are not uncommon, according to Johnson & Johnson.
Trials of one of Johnson & Johnson’s most promising vaccines have been temporarily halted due to an unexpected illness in one of the volunteers.
The details are not known.
Both company doctors and independent specialists work with the patient.
In the statement released Monday, J&J said such pauses are common during the third phase of trials, when the number of volunteers reaches the tens of thousands.
Several hundred vaccines against Covid-19 are currently being developed worldwide, nine of which, including a Russian vaccine, are in the third stage of development.
Activists in Wales advocate for herd immunity.
The head of the World Health Organization (WHO), Tedros Adhanom Ghebreyesus, called the strategy of herd immunity in the case of coronavirus scientifically and ethically questionable during a press conference on Monday.
In various countries, the opinion is heard that neither quarantine nor vaccine work is necessary: it is necessary to let the infection spread freely until the majority of people get sick, and then the pandemic will end of its own accord.
Hebruises recalled that throughout history, humanity has fought epidemics vigorously rather than choosing inaction.
At present, only about half a percent of the world’s population has COVID, so we are far from achieving herd immunity, and the number of deaths has already exceeded one million.
One and a half million Britons are currently looking for work.
The unemployment rate in the United Kingdom reached 4.5% of the labor force in August, the highest level in three years.
It was 4.1% in May.
One and a half million people are looking for work.
Since March, this number has increased by 500 thousand.
The number of layoffs in July-August was 227,000, the highest since 2009.
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According to Citibank forecasts, if current trends continue, the unemployment rate in Britain could reach 8.5% by next summer.
The deputy director of the National Bureau of Statistics, Jonathan Etou, links this directly to the coronavirus pandemic.
In an interview with the BBC, he said that those most affected were the hotel, catering and tourism industries, as well as young people aged 16-24.
“I have been honest from the beginning that unfortunately we will not be able to save every job,” said Finance Minister Rishi Sunak.
According to leaked documents, on September 21, the UK Cabinet Office’s Coronavirus Expert Group (Sage) proposed tightening quarantine measures for two to three weeks to slow the spread of the disease, but the government disagreed on economic grounds.
The Labour opposition called the news alarming, but Downing Street insists the measures being taken are sufficient if implemented effectively.
Prime Minister Boris Johnson said at a press conference on Monday that shops and educational institutions would not be closed.
The British authorities do not want to close the schools again.
The experts’ proposals included closing all bars, restaurants, cafes, fitness clubs and hair salons, moving schoolchildren and students to distance learning, and strongly advising citizens not to visit each other.
In a separate document dated September 17, Sage stated that the partial restriction on the operation of restaurants and pubs (until 22:00) is not very effective.
Currently, according to criteria developed by the government, all cities and regions have been assigned one of three levels of epidemiological risk – high, medium or low.
The majority of areas are at the medium level.
Liverpool will move to the highest level on Wednesday, which means a near-total lockdown for its residents.
More volunteers from ethnic minorities and over the age of 65 are needed to take part in the testing of vaccines developed in Britain, said Maneshi Ramasami, chief researcher of the Oxford Vaccine Group.
Scientists must ensure that vaccines are effective for all populations.
Out of 270,000 registered volunteers, ethnic minorities make up only 7%.
Meanwhile, for unknown reasons, they experience a more severe form of Covid-19 and have a higher mortality rate.
Therefore, Dr. Ramasami says, it is important to convince them of the effectiveness of mass vaccination when it begins.
It is planned to increase the number of test participants to 500 thousand.
There are currently six vaccines of different types in various stages of testing in the UK.