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The new crown test was positive more than 14 days after vaccination- |
Regarding "breakthrough infection", this is all that is known so far |
"Breakthrough infection" refers to those who have been vaccinated more than 14 days after the completion of vaccination, and the test result of the new coronavirus is positive
.
The name actually means - "protective barrier provided by the vaccine is destroyed"
"Breakthrough infection" refers to those who have been vaccinated more than 14 days after the completion of vaccination, and the test result of the new coronavirus is positive
The article stated that we still don't know how common "breakthrough infections" are, and our understanding of "breakthrough infections" in new coronary pneumonia is still developing.
The following is all we know so far
.
Doesn't mean that the vaccine doesn't work
Doesn't mean that the vaccine doesn't work Public health officials , government leaders, and scientists all have expectations of "breakthrough infections," because no vaccine is 100% effective
.
Even with the measles vaccine, which is known for its high efficiency, about 3% of vaccinators cannot be protected after being exposed to the virus; Jonas Salk’s polio vaccine can prevent paralysis caused by the polio virus Known as a "medical miracle", its effective rate is 80% to 90%; influenza "breakthrough infection" is even more common.
Although the exact effectiveness of influenza vaccine fluctuates every year, it ranges from 40% to 60%.
% Between
.
In the same way, for new coronary pneumonia, even if we have a highly effective vaccine, "breakthrough infection" may continue to occur because the virus has become so common
Delta may promote more "breakthrough infections"
Delta may promote more "breakthrough infections" Robert Darnell, a biochemist at Rockefeller University who has been studying coronaviruses, explained that the Delta variant contains a unique set of viral mutations that make it more infectious than other variants
.
"It has evolved in a way that allows it to enter cells more efficiently and replicate in cells more efficiently
In addition to its ability to infect cells more easily, scientists have also detected significantly more virus particles in the respiratory tract of individuals infected with Delta
.
If someone has more virus in their nose and throat, that person will also release more virus into the air and spread more easily
"Breakthrough infection" usually causes mild to moderate symptoms
"Breakthrough infection" usually causes mild to moderate symptoms Kate Ellinson, an epidemiologist at the University of Arizona, said that a lot of evidence shows that vaccines are very effective in reducing hospitalizations and deaths caused by all mutations
.
Those who are fully vaccinated and develop a "breakthrough infection", if they develop symptoms, are likely to develop mild to moderate illness
Another benefit of the vaccine is that it may shorten the course of many infected people
.
A report published in June showed that vaccination can reduce the severity and duration of the disease among medical staff and other emergency personnel with "breakthrough infection"
"Breakthrough infection" individuals may spread the virus
"Breakthrough infection" individuals may spread the virus Previously, scientists believed that vaccinated people rarely spread the virus
.
But the delta variant changed the "rules of the game
Some people are more prone to "breakthrough infection"
Some people are more prone to "breakthrough infection" People with weakened immune systems are at higher risk of "breakthrough infection" because the vaccine is also less effective for them
.
In the United States, for example, there are millions of immunocompromised people, including organ transplant recipients, cancer patients, and patients with advanced HIV or uncontrolled diabetes
.
In addition to the weakened immune function, in a crowded, poorly ventilated space, the longer you stay indoors without a mask, the greater the chance of "breakthrough infection"
.
Masks can provide an extra layer of protection
Masks can provide an extra layer of protection The new crown pandemic has lasted for more than a year, and it is completely understandable to feel frustrated with wearing masks
.
However, if you want to increase your protection against delta variants, "shielding" is still a good way
.
"It's not that the vaccine doesn't work, but the combination of the two works better
.
" Catherine Paulis, an infectious disease doctor at Pennsylvania State University, explained that if your city or area has a low vaccination rate, then "breakthrough infection" The risk will be higher
.
Close contact and duration of contact are still the main risk factors for infection.
If you plan to stay indoors for more than 15 minutes and do not know the vaccination status of people around you, it is recommended to wear a mask
.
"Breakthrough infections" sound shocking, but the important point is that they are extremely unlikely to cause hospitalization or death
.