After the CDC's recent decision to loosen restrictions on wearing masks by the CDC of the Centers for Disease Control and Prevention, there was a scientific study that showed that even if a person who had been vaccinated had Corona 19, the possibility of spreading it was small, CNN broadcast reported.



On this day, the CDC published its research results in the weekly report on disease incidence and mortality.



The CDC-led study found that 94% of front-line healthcare workers in the U.S. who initially received Modena and Pfizer's COVID-19 vaccine were protected by the vaccine's immune effects.



82% protection was found even in those who received only one dose.



CDC Director Rochelle Wallensky says the findings have led to easing recommendations on who and when to wear a mask.



A study that showed that vaccinations had a much lower'viral load' even if they got Corona 19 became a key basis for this mitigation decision.



Viral load refers to the amount of virus in the blood of an infected person.



It is expressed as the number of virus populations per ml of blood. Usually, the higher the level, the more contagious and the infection is in progress.



CNN said, "At least three studies have proven that people who have been vaccinated are less likely to test positive for COVID-19," said CNN. "This means they don't have the coronavirus in their body, whether they have symptoms or not."



In a study published in March, about 4,000 healthcare workers were tested for COVID-19 every week, of which 63% were vaccinated.



As a result, only about 11% had asymptomatic infections.



In particular, those who received both Pfizer, Moder, and vaccines were 90% less likely to test positive, and those who were hit only once were 80% less likely.



Similar results have been found in a recent study of over 1,800 healthcare workers.



Those who got Pfizer Modena vaccine once were 82% effective against corona 19, and those who received 2 times were 94% effective.



The CDC explained that the findings of this recent study were "along with many previous studies, the CDC was a pivotal point in changing its recommendations."



According to data from Israel, one health expert pointed out that the virus had a significantly lower load in the case of a breakthrough infectious patient who got the vaccine even though they were vaccinated like this.



"The asymptomatic infection is very rare, but the virus load and the virus outflow have been dramatically reduced in those who do," said Peter Hotez Baylor, director of the National School of Tropical Medicine. I said.



For some mutant viruses, which are known to be highly contagious and have a high fatality rate, the vaccine appears to be very effective at the moment, CDC determined.



However, even so, I put a clue that it may be less effective for some mutations.



"In theory, if only those who have been vaccinated go without a mask, there is little risk of spreading the virus." "I pointed out.



The biggest complaint raised after the CDC revised its mask guidelines is how it will crack down on people who haven't been vaccinated and don't wear masks.



In this regard, President Joe Biden has already announced that he will do this as a self-administered method of entrusting individual conscience and autonomy.



President Biden said on the 13th, "We will not go out and arrest people."



The National Food and Commerce Workers' Union has criticized the CDC's new guidelines for failing to consider how it will affect essential workers who have not been vaccinated but are frequently exposed to those who refuse to wear masks.