What does Covid vaccine hack mean
A string of recent coronavirus infections among vaccinated athletes and government employees has focused attention on the apparent rise in so-called superinfections. But while cases of fully vaccinated people have increased in recent weeks, experts say there is no cause for concern.
a The match between the New York Yankees and the Boston Red Sox on July 15 has been postponed Due to multiple confirmed cases of breach. A few days later, Kara Ecker, who alternates in the US women’s gymnastics team who was vaccinated in May, She tested positive at an Olympics training camp in Japan. And this week, government officials announced that a White House employee and senior communications aide to House Speaker Nancy Pelosi, D-Calif., The test result was positive even though they were fully vaccinated. The cases came on the heels of positive tests for Six members of the Texas Democratic delegation in Washington DC
More than 161 million people in the United States have been fully vaccinated, according to the Centers for Disease Control and Prevention, and superbugs seem to happen in just a short time. a small piece of them.
But as the pandemic continues and more transmissible variants of the virus spread more widely, the number of supernormal infections is expected to rise. However, studies have shown that most cases in vaccinated people are mild — if the person develops symptoms at all — and research suggests that vaccines still provide strong protection, even against known variants.
“The truth is that a lot of these breakthrough infections have been vaccinated in people who have tested positive for the virus, but there is a difference between a positive test and a disease,” said Angela Rasmussen, a virologist with the Vaccines and Infectious Diseases Organization at the University of Saskatchewan in Saskatchewan. Canada.
In other words, people who test positive may have trace amounts of the virus in their bodies – enough to be detected by Covid-19 tests but not enough to make them sick.
Because vaccines work by boosting the immune system, it can more quickly identify and attack invading pathogens.
“If you have a lot of good antibodies, they will probably be able to bind to the virus before it causes problems, and it can reduce or decrease your odds of getting sick,” said Dr. Rockefeller University in New York.
However, paranormal injuries are to be expected because no vaccine is 100 percent effective. In rare cases, fully vaccinated people can become seriously ill and die of Covid-19, but the vast majority of breakouts have been mild or asymptomatic.
That’s because vaccines work like screens to prevent most – but not necessarily all – virus particles from invading the body. Various factors influence the strength of the screen and the number of small virus particles able to cross the barrier, said Dr. Sarah Fortune, an immunologist at Harvard T.H. Chan School of Public Health.
“These variants are more portable, so they are better at going through screens,” she said. “The other factor is how much virus is trying to get in, and that is determined by vaccination rates in your community. It’s how much virus you’re exposed to.”
Vaccines can also reduce the amount of virus in the body, which may limit the ability of people with a superinfected infection to spread it to others, although the effect is not yet well understood. More research is needed to measure the effect of asymptomatic breakouts, in particular, on disease transmission.
“It may be the case that for the vast majority of vaccinated people who get infected, they don’t make enough virus to infect someone else,” said Dr. Janko Nikolic Ojic, an immunologist and professor of medicine at the University of Arizona.
Darnell, of Rockefeller University, said the recent rise in non-systematic infections was not associated with a similar increase in hospitalizations or deaths, which is encouraging evidence that vaccines appear to be holding off well, despite new and emerging variables.
The CDC initially tracked all superinfections, but as of May 1, it has shifted to focus only on cases associated with hospitalization or death. In that time, more than 100 million people in the United States were fully vaccinated, and the CDC recorded more than 10,000 cases of superbugs.
As of July 12, . has been released The CDC has reported 5,492 cases of hacking Where patients were taken to hospital or died. Three-quarters of the cases involved people over the age of 65. While they are tracked as penetrating infections, Covid-19 is not necessarily a cause of hospitalization or death, especially among asymptomatic patients.
Rasmussen said the higher rates of hospitalization and death in the elderly are not surprising because older adults are generally more likely to contract serious illness from Covid-19. People with immunodeficiency Or those with underlying conditions are similarly at greater risk.
In Israel, where 80 percent of people aged 16 or older have been fully vaccinated, researchers studied 152 miraculous cases in which patients were hospitalized and found that most involved people with underlying conditions, such as high blood pressure, diabetes and heart failure. congestive; The study published on July 6 in Journal of Clinical Microbiology and Infection, found that only six cases included patients without comorbidities.
Israel reported this month that the Pfizer-BioNTech vaccine was 93% effective in preventing hospitalizations and serious illnesses, but Its efficacy decreased to 64 percent For the prevention of infection and symptomatic diseases.
a A separate analysis was released on June 25 by Public Health England found that two shots of the Pfizer-BioNTech vaccine and AstraZeneca were 79 percent effective in protecting against symptomatic disease with a delta variant and 96 percent effective against hospitalization.
Rasmussen said that the ability of vaccines to protect against serious diseases is critical, and is an indication that vaccines will continue to perform well.
“If we start to see intensive care units filling up with fully vaccinated people, that would be an indication that vaccines are no longer effective,” she said.
While vaccines remain highly effective, there is cause for concern if epidemics persist across the country. The longer the virus is left to circulate, the higher the chances of a pathogen mutating in a way that makes it more transmissible, enabling it to cause more serious illness or helping it evade vaccine protection.
“Every pathogen arms race ends badly, because this is a fundamental development,” Fortune said. “What we’re talking about is that the virus is trying not to go extinct, and evolution will favor transmission. Evolution will favor escape from a vaccine.”
Preventing such an outcome will require focusing on vaccinating as many people as possible in the United States and around the world.
“I lose an endless amount of sleep due to the fact that we have large numbers of unvaccinated people who are at high risk of developing acute illness,” Nikolic Ojic said. “We shouldn’t be complacent or smug about it, but it pales in comparison to the question of how to vaccinate as many people as possible.”